1 dnl***************************************************************************
2 dnl Copyright 2018-2022,2023 Thomas E. Dickey *
3 dnl Copyright 2003-2017,2018 Free Software Foundation, Inc. *
5 dnl Permission is hereby granted, free of charge, to any person obtaining a *
6 dnl copy of this software and associated documentation files (the *
7 dnl "Software"), to deal in the Software without restriction, including *
8 dnl without limitation the rights to use, copy, modify, merge, publish, *
9 dnl distribute, distribute with modifications, sublicense, and/or sell *
10 dnl copies of the Software, and to permit persons to whom the Software is *
11 dnl furnished to do so, subject to the following conditions: *
13 dnl The above copyright notice and this permission notice shall be included *
14 dnl in all copies or substantial portions of the Software. *
16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 dnl Except as contained in this notice, the name(s) of the above copyright *
25 dnl holders shall not be used in advertising or otherwise to promote the *
26 dnl sale, use or other dealings in this Software without prior written *
28 dnl***************************************************************************
30 dnl $Id: aclocal.m4,v 1.220 2023/12/03 14:21:34 tom Exp $
32 dnl Author: Thomas E. Dickey
34 dnl Macros used in NCURSES test programs auto-configuration script.
36 dnl These macros are maintained separately from NCURSES. The copyright on
37 dnl this file applies to the aggregation of macros and does not affect use of
38 dnl these macros in other applications.
40 dnl See these pages for additional information:
41 dnl https://invisible-island.net/autoconf/
42 dnl https://invisible-island.net/autoconf/my-autoconf.html
44 dnl ---------------------------------------------------------------------------
45 dnl ---------------------------------------------------------------------------
46 dnl AM_LANGINFO_CODESET version: 7 updated: 2023/01/11 04:05:23
47 dnl -------------------
48 dnl Inserted as requested by gettext 0.10.40
49 dnl File from /usr/share/aclocal
51 dnl ====================
54 dnl From Bruno Haible.
55 AC_DEFUN([AM_LANGINFO_CODESET],
57 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
60 #include <langinfo.h>],
61 [char* cs = nl_langinfo(CODESET); (void)cs],
62 am_cv_langinfo_codeset=yes,
63 am_cv_langinfo_codeset=no)
65 if test "$am_cv_langinfo_codeset" = yes; then
66 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
67 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
70 dnl ---------------------------------------------------------------------------
71 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
72 dnl ------------------
73 dnl Conditionally generate script according to whether we're using a given autoconf.
75 dnl $1 = version to compare against
76 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
77 dnl $3 = code to use if AC_ACVERSION is older than $1.
78 define([CF_ACVERSION_CHECK],
80 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
81 ifdef([m4_version_compare],
82 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
83 [CF_ACVERSION_COMPARE(
84 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
85 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
86 dnl ---------------------------------------------------------------------------
87 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
88 dnl --------------------
89 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
90 dnl MAJOR2, MINOR2, TERNARY2,
91 dnl PRINTABLE2, not FOUND, FOUND)
92 define([CF_ACVERSION_COMPARE],
93 [ifelse(builtin([eval], [$2 < $5]), 1,
94 [ifelse([$8], , ,[$8])],
95 [ifelse([$9], , ,[$9])])])dnl
96 dnl ---------------------------------------------------------------------------
97 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
99 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
100 dnl $1 = flags to add
101 dnl $2 = if given makes this macro verbose.
103 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
104 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
105 dnl confused by the quotes (which require backslashes to keep them usable).
106 AC_DEFUN([CF_ADD_CFLAGS],
111 cf_new_extra_cppflags=
113 for cf_add_cflags in $1
115 case "$cf_fix_cppflags" in
117 case "$cf_add_cflags" in
118 (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
119 case "$cf_add_cflags" in
121 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
123 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
124 && test -z "${cf_tst_cflags}" \
125 && cf_fix_cppflags=yes
127 if test "$cf_fix_cppflags" = yes ; then
128 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
130 elif test "${cf_tst_cflags}" = "\"'" ; then
131 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
140 case "$cf_add_cflags" in
142 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
143 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
146 CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
151 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
156 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
158 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
160 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
161 && test -z "${cf_tst_cflags}" \
162 && cf_fix_cppflags=no
167 if test -n "$cf_new_cflags" ; then
168 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
169 CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
172 if test -n "$cf_new_cppflags" ; then
173 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
174 CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
177 if test -n "$cf_new_extra_cppflags" ; then
178 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
179 CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
182 AC_SUBST(EXTRA_CPPFLAGS)
185 dnl ---------------------------------------------------------------------------
186 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
188 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it is
189 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
190 dnl but old versions (and some misinstalled ones) need that. To make things
191 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
192 dnl the include-path).
193 AC_DEFUN([CF_ADD_INCDIR],
195 if test -n "$1" ; then
196 for cf_add_incdir in $1
198 while test "$cf_add_incdir" != /usr/include
200 if test -d "$cf_add_incdir"
203 if test -n "$CFLAGS$CPPFLAGS" ; then
204 # a loop is needed to ensure we can add subdirs of existing dirs
205 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
206 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
207 cf_have_incdir=yes; break
212 if test "$cf_have_incdir" = no ; then
213 if test "$cf_add_incdir" = /usr/local/include ; then
216 cf_save_CPPFLAGS=$CPPFLAGS
217 CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
218 AC_TRY_COMPILE([#include <stdio.h>],
221 [cf_have_incdir=yes])
222 CPPFLAGS=$cf_save_CPPFLAGS
227 if test "$cf_have_incdir" = no ; then
228 CF_VERBOSE(adding $cf_add_incdir to include-path)
229 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
231 cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
232 test "$cf_top_incdir" = "$cf_add_incdir" && break
233 cf_add_incdir="$cf_top_incdir"
244 dnl ---------------------------------------------------------------------------
245 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
247 dnl Add a library, used to enforce consistency.
249 dnl $1 = library to add, without the "-l"
250 dnl $2 = variable to update (default $LIBS)
251 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
252 dnl ---------------------------------------------------------------------------
253 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
255 dnl Adds to the library-path
257 dnl Some machines have trouble with multiple -L options.
259 dnl $1 is the (list of) directory(s) to add
260 dnl $2 is the optional name of the variable to update (default LDFLAGS)
262 AC_DEFUN([CF_ADD_LIBDIR],
264 if test -n "$1" ; then
265 for cf_add_libdir in $1
267 if test "$cf_add_libdir" = /usr/lib ; then
269 elif test -d "$cf_add_libdir"
272 if test -n "$LDFLAGS$LIBS" ; then
273 # a loop is needed to ensure we can add subdirs of existing dirs
274 for cf_test_libdir in $LDFLAGS $LIBS ; do
275 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
276 cf_have_libdir=yes; break
280 if test "$cf_have_libdir" = no ; then
281 CF_VERBOSE(adding $cf_add_libdir to library-path)
282 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
288 dnl ---------------------------------------------------------------------------
289 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
291 dnl Add one or more libraries, used to enforce consistency. Libraries are
292 dnl prepended to an existing list, since their dependencies are assumed to
293 dnl already exist in the list.
295 dnl $1 = libraries to add, with the "-l", etc.
296 dnl $2 = variable to update (default $LIBS)
297 AC_DEFUN([CF_ADD_LIBS],[
298 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
301 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
303 for cf_add_1lib in $cf_add_0lib; do
304 for cf_add_2lib in $cf_add_libs; do
305 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
310 test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
312 ifelse($2,,LIBS,[$2])="$cf_add_libs"
314 dnl ---------------------------------------------------------------------------
315 dnl CF_ADD_LIB_AFTER version: 3 updated: 2013/07/09 21:27:22
317 dnl Add a given library after another, e.g., following the one it satisfies a
320 dnl $1 = the first library
321 dnl $2 = its dependency
322 AC_DEFUN([CF_ADD_LIB_AFTER],[
323 CF_VERBOSE(...before $LIBS)
324 LIBS=`echo "$LIBS" | sed -e "s/[[ ]][[ ]]*/ /g" -e "s%$1 %$1 $2 %" -e 's% % %g'`
325 CF_VERBOSE(...after $LIBS)
327 dnl ---------------------------------------------------------------------------
328 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
329 dnl ------------------
330 dnl Append to a search-list for a nonstandard header/lib-file
331 dnl $1 = the variable to return as result
332 dnl $2 = the package name
333 dnl $3 = the subdirectory, e.g., bin, include or lib
334 dnl $4 = the directory under which we will test for subdirectories
335 dnl $5 = a directory that we do not want $4 to match
336 AC_DEFUN([CF_ADD_SUBDIR_PATH],
338 test "x$4" != "x$5" && \
340 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
341 test -n "$verbose" && echo " ... testing for $3-directories under $4"
342 test -d "$4/$3" && $1="[$]$1 $4/$3"
343 test -d "$4/$3/$2" && $1="[$]$1 $4/$3/$2"
344 test -d "$4/$3/$2/$3" && $1="[$]$1 $4/$3/$2/$3"
345 test -d "$4/$2/$3" && $1="[$]$1 $4/$2/$3"
346 test -d "$4/$2/$3/$2" && $1="[$]$1 $4/$2/$3/$2"
349 dnl ---------------------------------------------------------------------------
350 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
352 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
353 dnl $1 = flags to add
354 dnl $2 = if given makes this macro verbose.
355 define([CF_APPEND_CFLAGS],
357 for cf_add_cflags in $1
359 case "x$cf_add_cflags" in
361 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
362 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
365 CF_ADD_CFLAGS([$cf_add_cflags],[$2])
368 dnl ---------------------------------------------------------------------------
369 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
371 dnl use this macro for appending text without introducing an extra blank at
373 define([CF_APPEND_TEXT],
375 test -n "[$]$1" && $1="[$]$1 "
378 dnl ---------------------------------------------------------------------------
379 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
381 dnl Allow user to disable a normally-on option.
382 AC_DEFUN([CF_ARG_DISABLE],
383 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
384 dnl ---------------------------------------------------------------------------
385 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
387 dnl Allow user to enable a normally-off option.
388 AC_DEFUN([CF_ARG_ENABLE],
389 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
390 dnl ---------------------------------------------------------------------------
391 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
393 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
399 dnl $3 = action to perform if option is not default
400 dnl $4 = action if perform if option is default
401 dnl $5 = default option value (either 'yes' or 'no')
402 AC_DEFUN([CF_ARG_OPTION],
403 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
404 if test "$enableval" != "$5" ; then
406 ,[ $3]) ifelse([$4],,,[
409 fi],[enableval=$5 ifelse([$4],,,[
413 dnl ---------------------------------------------------------------------------
414 dnl CF_C11_NORETURN version: 4 updated: 2023/02/18 17:41:25
416 AC_DEFUN([CF_C11_NORETURN],
418 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
419 CF_ARG_ENABLE(stdnoreturn,
420 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
421 [enable_stdnoreturn=yes],
422 [enable_stdnoreturn=no])
423 AC_MSG_RESULT($enable_stdnoreturn)
425 if test $enable_stdnoreturn = yes; then
426 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
429 #include <stdnoreturn.h>
430 static _Noreturn void giveup(void) { exit(0); }
432 [if (feof(stdin)) giveup()],
433 cf_cv_c11_noreturn=yes,
434 cf_cv_c11_noreturn=no)
437 cf_cv_c11_noreturn=no,
440 if test "$cf_cv_c11_noreturn" = yes; then
441 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
442 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
448 AC_SUBST(HAVE_STDNORETURN_H)
449 AC_SUBST(STDC_NORETURN)
451 dnl ---------------------------------------------------------------------------
452 dnl CF_CC_ENV_FLAGS version: 11 updated: 2023/02/20 11:15:46
454 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
455 dnl into CC. This will not help with broken scripts that wrap the compiler
456 dnl with options, but eliminates a more common category of user confusion.
458 dnl In particular, it addresses the problem of being able to run the C
459 dnl preprocessor in a consistent manner.
461 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
462 dnl the nuisance of having inconsistent settings for compiler and preprocessor
463 dnl outweighs that limitation.
464 AC_DEFUN([CF_CC_ENV_FLAGS],
466 # This should have been defined by AC_PROG_CC
469 AC_MSG_CHECKING(\$CFLAGS variable)
472 AC_MSG_RESULT(broken)
473 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
476 for cf_arg in $cf_flags
478 CF_ADD_CFLAGS($cf_arg)
486 AC_MSG_CHECKING(\$CC variable)
489 AC_MSG_RESULT(broken)
490 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
492 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
493 cf_flags=`echo "$CC" | sed -e "s%^$cf_prog%%"`
495 for cf_arg in $cf_flags
499 CF_ADD_CFLAGS($cf_arg)
506 CF_VERBOSE(resulting CC: '$CC')
507 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
508 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
515 dnl ---------------------------------------------------------------------------
516 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
518 dnl Check if we're accidentally using a cache from a different machine.
519 dnl Derive the system name, as a check for reusing the autoconf cache.
521 dnl If we've packaged config.guess and config.sub, run that (since it does a
522 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
523 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
524 dnl which is useful in cross-compiles.
526 dnl Note: we would use $ac_config_sub, but that is one of the places where
527 dnl autoconf 2.5x broke compatibility with autoconf 2.13
528 AC_DEFUN([CF_CHECK_CACHE],
530 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
531 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
532 system_name="$host_os"
534 system_name="`(uname -s -r) 2>/dev/null`"
535 if test -z "$system_name" ; then
536 system_name="`(hostname) 2>/dev/null`"
539 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
540 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
542 test -z "$system_name" && system_name="$cf_cv_system_name"
543 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
545 if test ".$system_name" != ".$cf_cv_system_name" ; then
546 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
547 AC_MSG_ERROR("Please remove config.cache and try again.")
550 dnl ---------------------------------------------------------------------------
551 dnl CF_CHECK_CFLAGS version: 4 updated: 2021/01/02 19:22:58
553 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
554 dnl a build-configuration such as imake. These have the pitfall that they
555 dnl often contain compiler-specific options which we cannot use, mixed with
556 dnl preprocessor options that we usually can.
557 AC_DEFUN([CF_CHECK_CFLAGS],
559 CF_VERBOSE(checking additions to CFLAGS)
560 cf_check_cflags="$CFLAGS"
561 cf_check_cppflags="$CPPFLAGS"
562 CF_ADD_CFLAGS($1,yes)
563 if test "x$cf_check_cflags" != "x$CFLAGS" ; then
564 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
565 [CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
566 if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
567 CF_VERBOSE(but keeping change to \$CPPFLAGS)
569 CFLAGS="$cf_check_cflags"])
572 dnl ---------------------------------------------------------------------------
573 dnl CF_CHECK_CURSES_LIB version: 4 updated: 2021/09/05 17:25:40
574 dnl -------------------
575 dnl $1 = nominal library name, used also for header lookup
576 dnl $2 = suffix to append to library name
577 dnl $3 = function to check for using AC_CHECK_LIB
578 dnl $4 = optional parameter list for $3
579 AC_DEFUN([CF_CHECK_CURSES_LIB],
581 AC_REQUIRE([CF_PKG_CONFIG])
583 cf_have_curses_lib=no
585 : ${NCURSES_CONFIG_PKG:=none}
586 if test "x${NCURSES_CONFIG_PKG}" = xnone; then
588 elif test "x${PKG_CONFIG:=none}" != xnone; then
589 AC_MSG_CHECKING(pkg-config for $1$2)
590 if "$PKG_CONFIG" --exists "$1$2" ; then
593 AC_MSG_CHECKING(if the $1$2 package files work)
595 cf_save_CFLAGS="$CFLAGS"
596 cf_save_CPPFLAGS="$CPPFLAGS"
599 CF_APPEND_CFLAGS(`$PKG_CONFIG --cflags "$1$2"`)
600 CF_ADD_LIBS(`$PKG_CONFIG --libs "$1$2"`)
602 AC_TRY_LINK([#include <$1.h>],
603 [(void) $3 ( ]ifelse([$4],,,[[$4]])[ );],
604 [AC_TRY_RUN([#include <$1.h>
606 { (void) $3 ( ]ifelse([$4],,,[[$4]])[ ); return 0; }],
607 [cf_have_curses_lib=yes],
608 [cf_have_curses_lib=no],
609 [cf_have_curses_lib=maybe])],
610 [cf_have_curses_lib=no])
611 AC_MSG_RESULT($cf_have_curses_lib)
612 test "$cf_have_curses_lib" = maybe && cf_have_curses_lib=yes
613 if test "$cf_have_curses_lib" = "yes"
615 CF_UPPER(cf_upper,have_lib$1)
616 AC_DEFINE_UNQUOTED($cf_upper,1)
618 CFLAGS="$cf_save_CFLAGS"
619 CPPFLAGS="$cf_save_CPPFLAGS"
624 if test "$cf_have_curses_lib" = no; then
625 AC_CHECK_LIB($1$2,$3,[
626 CF_UPPER(cf_upper,have_lib$1)
628 AC_DEFINE_UNQUOTED($cf_upper,1)])
631 dnl ---------------------------------------------------------------------------
632 dnl CF_CLANG_COMPILER version: 9 updated: 2023/02/18 17:41:25
633 dnl -----------------
634 dnl Check if the given compiler is really clang. clang's C driver defines
635 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
636 dnl not ignore some gcc options.
638 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
639 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
640 dnl the wrappers for gcc and g++ warnings.
642 dnl $1 = GCC (default) or GXX
643 dnl $2 = CLANG_COMPILER (default)
644 dnl $3 = CFLAGS (default) or CXXFLAGS
645 AC_DEFUN([CF_CLANG_COMPILER],[
646 ifelse([$2],,CLANG_COMPILER,[$2])=no
648 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
649 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
650 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
654 #error __clang__ is not defined
656 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
658 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
659 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
664 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
666 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
667 AC_MSG_WARN(replacing broken compiler alias $CC)
668 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
673 AC_MSG_CHECKING(version of $CC)
674 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
675 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
676 AC_MSG_RESULT($CLANG_VERSION)
678 for cf_clang_opt in \
680 -Wno-error=implicit-function-declaration
682 AC_MSG_CHECKING(if option $cf_clang_opt works)
683 cf_save_CFLAGS="$CFLAGS"
684 CFLAGS="$CFLAGS $cf_clang_opt"
686 #include <stdio.h>],[
687 printf("hello!\\n");],[
688 cf_clang_optok=yes],[
690 AC_MSG_RESULT($cf_clang_optok)
691 CFLAGS="$cf_save_CFLAGS"
692 if test "$cf_clang_optok" = yes; then
693 CF_VERBOSE(adding option $cf_clang_opt)
694 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
699 dnl ---------------------------------------------------------------------------
700 dnl CF_CONST_X_STRING version: 8 updated: 2023/12/01 17:22:50
701 dnl -----------------
702 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
703 dnl character-strings.
705 dnl It is ambiguous because the specification accommodated the pre-ANSI
706 dnl compilers bundled by more than one vendor in lieu of providing a standard C
707 dnl compiler other than by costly add-ons. Because of this, the specification
708 dnl did not take into account the use of const for telling the compiler that
709 dnl string literals would be in readonly memory.
711 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
712 dnl let the compiler decide how to represent Xt's strings which were #define'd.
713 dnl That does not solve the problem of using the block of Xt's strings which
714 dnl are compiled into the library (and is less efficient than one might want).
716 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
717 dnl when compiling the library and compiling using the library, to tell the
718 dnl compiler that String is const.
719 AC_DEFUN([CF_CONST_X_STRING],
721 AC_REQUIRE([AC_PATH_XTRA])
723 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
728 #include <X11/Intrinsic.h>
730 [String foo = malloc(1); free((void*)foo)],[
732 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
735 #undef _CONST_X_STRING
736 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
737 #undef XTSTRINGDEFINES /* X11R5 and later */
739 #include <X11/Intrinsic.h>
740 ],[String foo = malloc(1); *foo = 0],[
741 cf_cv_const_x_string=no
743 cf_cv_const_x_string=yes
747 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
749 case "$cf_cv_const_x_string" in
751 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
754 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
760 dnl ---------------------------------------------------------------------------
761 dnl CF_CURSES_ACS_MAP version: 8 updated: 2021/01/04 19:45:09
762 dnl -----------------
763 dnl Check for likely values of acs_map[]:
764 AC_DEFUN([CF_CURSES_ACS_MAP],
766 AC_REQUIRE([CF_NCURSES_WRAP_PREFIX])dnl
767 AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
768 cf_cv_curses_acs_map=unknown
769 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
772 #include <${cf_cv_ncurses_header:-curses.h}>
774 ${name}['k'] = ACS_PLUS
775 ],[cf_cv_curses_acs_map=$name; break])
779 test "$cf_cv_curses_acs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_ACS_ARRAY,$cf_cv_curses_acs_map,[Define as needed to override ncurses prefix _nc_])
781 dnl ---------------------------------------------------------------------------
782 dnl CF_CURSES_CHECK_DATA version: 10 updated: 2021/01/04 19:45:09
783 dnl --------------------
784 dnl Check if curses.h defines the given data/variable.
785 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
787 dnl $1 = data item(s) to check for
788 dnl $2 = action on success, e.g., "break" to quit checking a series of choices
789 AC_DEFUN([CF_CURSES_CHECK_DATA],
793 AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h})
795 AC_TRY_COMPILE(CF__CURSES_HEAD,
796 CF__CURSES_DATA(foo,$cf_data)
799 AC_MSG_RESULT($cf_result)
801 if test "$cf_result" = yes ; then
802 CF_UPPER(cf_result,have_curses_data_$cf_data)
803 AC_DEFINE_UNQUOTED($cf_result)
806 AC_MSG_CHECKING(for data $cf_data in library)
807 # BSD linkers insist on making weak linkage, but resolve at runtime.
808 AC_TRY_RUN(CF__CURSES_HEAD
810 extern char $cf_data;
813 ]CF__CURSES_DATA(foo,$cf_data)[
814 ${cf_cv_main_return:-return}(foo == 0);
818 AC_TRY_LINK(CF__CURSES_HEAD
819 [extern char $cf_data;],[
821 ]CF__CURSES_DATA(foo,$cf_data)[
822 ${cf_cv_main_return:-return}(foo == 0);
824 ],[cf_result=yes],[cf_result=no])
826 AC_MSG_RESULT($cf_result)
827 if test "$cf_result" = yes ; then
828 CF_UPPER(cf_result,decl_curses_data_$cf_data)
829 AC_DEFINE_UNQUOTED($cf_result)
830 # do not exit loop here, since we prefer system's declarations
835 dnl ---------------------------------------------------------------------------
836 dnl CF_CURSES_CHECK_TYPE version: 5 updated: 2021/01/04 19:45:09
837 dnl --------------------
838 dnl Check if curses.h defines the given type
839 AC_DEFUN([CF_CURSES_CHECK_TYPE],
841 AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header:-curses.h})
843 #ifndef _XOPEN_SOURCE_EXTENDED
844 #define _XOPEN_SOURCE_EXTENDED
846 #include <${cf_cv_ncurses_header:-curses.h}>],[
848 ],cf_result=yes,cf_result=no)
849 AC_MSG_RESULT($cf_result)
850 if test "$cf_result" = yes ; then
851 CF_UPPER(cf_result,have_type_$1)
852 AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
854 AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
857 dnl ---------------------------------------------------------------------------
858 dnl CF_CURSES_CONFIG version: 2 updated: 2006/10/29 11:06:27
860 dnl Tie together the configure-script macros for curses. It may be ncurses,
861 dnl but unless asked, we do not make a special search for ncurses. However,
862 dnl still check for the ncurses version number, for use in other macros.
863 AC_DEFUN([CF_CURSES_CONFIG],
869 dnl ---------------------------------------------------------------------------
870 dnl CF_CURSES_CPPFLAGS version: 14 updated: 2021/01/02 09:31:20
871 dnl ------------------
872 dnl Look for the curses headers.
873 AC_DEFUN([CF_CURSES_CPPFLAGS],[
875 AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
876 cf_cv_curses_incdir=no
879 if test "x$cf_cv_screen" = "xcurses_colr"
881 test -d /usr/include/curses_colr && \
882 cf_cv_curses_incdir="-I/usr/include/curses_colr"
886 if test "x$cf_cv_screen" = "xcurses_5lib"
888 test -d /usr/5lib && \
889 test -d /usr/5include && \
890 cf_cv_curses_incdir="-I/usr/5include"
895 if test "$cf_cv_curses_incdir" != no
897 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
903 dnl ---------------------------------------------------------------------------
904 dnl CF_CURSES_FUNCS version: 20 updated: 2020/12/31 20:19:42
906 dnl Curses-functions are a little complicated, since a lot of them are macros.
907 AC_DEFUN([CF_CURSES_FUNCS],
909 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
910 AC_REQUIRE([CF_XOPEN_CURSES])
911 AC_REQUIRE([CF_CURSES_TERM_H])
912 AC_REQUIRE([CF_CURSES_UNCTRL_H])
915 CF_UPPER(cf_tr_func,$cf_func)
916 AC_MSG_CHECKING(for ${cf_func})
917 CF_MSG_LOG(${cf_func})
918 AC_CACHE_VAL(cf_cv_func_$cf_func,[
919 eval cf_result='$ac_cv_func_'$cf_func
920 if test ".$cf_result" != ".no"; then
921 AC_TRY_LINK(CF__CURSES_HEAD,
924 long foo = (long)(&${cf_func});
925 fprintf(stderr, "testing linkage of $cf_func:%p\\n", (void *)foo);
926 if (foo + 1234L > 5678L)
927 ${cf_cv_main_return:-return}(foo != 0);
933 eval 'cf_cv_func_'$cf_func'="$cf_result"'
935 # use the computed/retrieved cache-value:
936 eval 'cf_result=$cf_cv_func_'$cf_func
937 AC_MSG_RESULT($cf_result)
938 if test "$cf_result" != no; then
939 AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
943 dnl ---------------------------------------------------------------------------
944 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
946 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
947 dnl variations of ncurses' installs.
949 dnl $1 = ncurses when looking for ncurses, or is empty
950 AC_DEFUN([CF_CURSES_HEADER],[
951 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
952 cf_cv_ncurses_header=none
954 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
955 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
957 AC_TRY_COMPILE([#include <${cf_header}>],
958 [initscr(); endwin()],
959 [cf_cv_ncurses_header=$cf_header; break],[])
963 if test "$cf_cv_ncurses_header" = none ; then
964 AC_MSG_ERROR(No curses header-files found)
967 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
968 AC_CHECK_HEADERS($cf_cv_ncurses_header)
970 dnl ---------------------------------------------------------------------------
971 dnl CF_CURSES_LIBS version: 45 updated: 2022/12/02 20:06:52
973 dnl Look for the curses libraries. Older curses implementations may require
974 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
975 AC_DEFUN([CF_CURSES_LIBS],[
977 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
978 AC_MSG_CHECKING(if we have identified curses libraries)
979 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
980 [initscr(); endwin()],
983 AC_MSG_RESULT($cf_result)
985 if test "$cf_result" = no ; then
988 AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
991 # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
992 # next (1998), and xcurses "newer" (2000). There is no header file for
993 # Hcurses; the subdirectory curses_colr has the headers (curses.h and
994 # term.h) for cur_colr
995 if test "x$cf_cv_screen" = "xcurses_colr"
997 AC_CHECK_LIB(cur_colr,initscr,[
998 CF_ADD_LIBS(-lcur_colr)
999 ac_cv_func_initscr=yes
1001 AC_CHECK_LIB(Hcurses,initscr,[
1002 # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
1003 CF_ADD_LIBS(-lHcurses)
1004 CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
1005 ac_cv_func_initscr=yes
1010 case `arch 2>/dev/null` in
1014 CF_ADD_LIBDIR(/lib64)
1025 if test "x$cf_cv_screen" = "xcurses_5lib"
1027 if test -d /usr/5lib ; then
1028 CF_ADD_LIBDIR(/usr/5lib)
1029 CF_ADD_LIBS(-lcurses -ltermcap)
1032 ac_cv_func_initscr=yes
1036 if test ".$ac_cv_func_initscr" != .yes ; then
1037 cf_save_LIBS="$LIBS"
1039 if test ".${cf_cv_ncurses_version:-no}" != .no
1041 cf_check_list="ncurses curses cursesX"
1043 cf_check_list="cursesX curses ncurses"
1046 # Check for library containing tgoto. Do this before curses library
1047 # because it may be needed to link the test-case for initscr.
1048 if test "x$cf_term_lib" = x
1050 AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
1051 for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
1053 AC_CHECK_LIB($cf_term_lib,tgoto,[
1054 : "${cf_nculib_root:=$cf_term_lib}"
1061 # Check for library containing initscr
1062 test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
1063 if test "x$cf_curs_lib" = x
1065 for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
1067 LIBS="-l$cf_curs_lib $cf_save_LIBS"
1068 if test "$cf_term_lib" = unknown || test "$cf_term_lib" = "$cf_curs_lib" ; then
1069 AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
1070 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1074 AC_MSG_RESULT($cf_result)
1075 test "$cf_result" = yes && break
1076 elif test "$cf_curs_lib" = "$cf_term_lib" ; then
1078 elif test "$cf_term_lib" != predefined ; then
1079 AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
1080 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1081 [initscr(); endwin();],
1084 LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
1085 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1090 AC_MSG_RESULT($cf_result)
1091 test "$cf_result" != error && break
1095 test "$cf_curs_lib" = unknown && AC_MSG_ERROR(no curses library found)
1100 dnl ---------------------------------------------------------------------------
1101 dnl CF_CURSES_TERM_H version: 15 updated: 2021/01/02 09:31:20
1102 dnl ----------------
1103 dnl SVr4 curses should have term.h as well (where it puts the definitions of
1104 dnl the low-level interface). This may not be true in old/broken implementations,
1105 dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
1106 dnl running with Solaris 2.5.1).
1107 AC_DEFUN([CF_CURSES_TERM_H],
1109 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1111 AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
1113 # If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
1114 # for <term.h> if we do not find the variant.
1116 cf_header_list="term.h ncurses/term.h ncursesw/term.h"
1118 case "${cf_cv_ncurses_header:-curses.h}" in
1120 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
1121 cf_header_list="$cf_header_item $cf_header_list"
1125 for cf_header in $cf_header_list
1128 #include <${cf_cv_ncurses_header:-curses.h}>
1129 #include <${cf_header}>],
1130 [WINDOW *x; (void)x],
1131 [cf_cv_term_header=$cf_header
1133 [cf_cv_term_header=no])
1136 case "$cf_cv_term_header" in
1138 # If curses is ncurses, some packagers still mess it up by trying to make
1139 # us use GNU termcap. This handles the most common case.
1140 for cf_header in ncurses/term.h ncursesw/term.h
1143 #include <${cf_cv_ncurses_header:-curses.h}>
1144 #ifdef NCURSES_VERSION
1145 #include <${cf_header}>
1149 [WINDOW *x; (void)x],
1150 [cf_cv_term_header=$cf_header
1152 [cf_cv_term_header=no])
1158 case "$cf_cv_term_header" in
1160 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
1163 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
1166 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
1170 dnl ---------------------------------------------------------------------------
1171 dnl CF_CURSES_UNCTRL_H version: 8 updated: 2021/01/02 09:31:20
1172 dnl ------------------
1173 dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
1174 dnl may put it in a subdirectory (along with ncurses' other headers, of
1175 dnl course). Packages which put the headers in inconsistent locations are
1177 AC_DEFUN([CF_CURSES_UNCTRL_H],
1179 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1181 AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
1183 # If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
1184 # for <unctrl.h> if we do not find the variant.
1186 cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
1188 case "${cf_cv_ncurses_header:-curses.h}" in
1190 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
1191 cf_header_list="$cf_header_item $cf_header_list"
1195 for cf_header in $cf_header_list
1198 #include <${cf_cv_ncurses_header:-curses.h}>
1199 #include <${cf_header}>],
1200 [WINDOW *x; (void)x],
1201 [cf_cv_unctrl_header=$cf_header
1203 [cf_cv_unctrl_header=no])
1207 case "$cf_cv_unctrl_header" in
1209 AC_MSG_WARN(unctrl.h header not found)
1213 case "$cf_cv_unctrl_header" in
1215 AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
1218 AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
1221 AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
1225 dnl ---------------------------------------------------------------------------
1226 dnl CF_CURSES_WACS_MAP version: 8 updated: 2021/01/04 19:45:09
1227 dnl ------------------
1228 dnl Check for likely values of wacs_map[].
1229 AC_DEFUN([CF_CURSES_WACS_MAP],
1231 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
1232 cf_cv_curses_wacs_map=unknown
1233 for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
1236 #ifndef _XOPEN_SOURCE_EXTENDED
1237 #define _XOPEN_SOURCE_EXTENDED
1239 #include <${cf_cv_ncurses_header:-curses.h}>],
1240 [void *foo = &(${name}['k']); (void)foo],
1241 [cf_cv_curses_wacs_map=$name
1245 test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
1247 dnl ---------------------------------------------------------------------------
1248 dnl CF_CURSES_WACS_SYMBOLS version: 4 updated: 2021/01/04 19:45:09
1249 dnl ----------------------
1250 dnl Do a check to see if the WACS_xxx constants are defined compatibly with
1251 dnl X/Open Curses. In particular, NetBSD's implementation of the WACS_xxx
1252 dnl constants is broken since those constants do not point to cchar_t's.
1253 AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
1255 AC_REQUIRE([CF_CURSES_WACS_MAP])
1257 AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
1258 cf_cv_curses_wacs_symbols=no
1259 if test "$cf_cv_curses_wacs_map" != unknown
1262 #ifndef _XOPEN_SOURCE_EXTENDED
1263 #define _XOPEN_SOURCE_EXTENDED
1265 #include <${cf_cv_ncurses_header:-curses.h}>],
1266 [cchar_t *foo = WACS_PLUS;
1267 ${cf_cv_curses_wacs_map}['k'] = *WACS_PLUS; (void)foo],
1268 [cf_cv_curses_wacs_symbols=yes])
1271 #ifndef _XOPEN_SOURCE_EXTENDED
1272 #define _XOPEN_SOURCE_EXTENDED
1274 #include <${cf_cv_ncurses_header:-curses.h}>],
1275 [cchar_t *foo = WACS_PLUS; (void)foo],
1276 [cf_cv_curses_wacs_symbols=yes])
1280 test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
1282 dnl ---------------------------------------------------------------------------
1283 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1285 dnl "dirname" is not portable, so we fake it with a shell script.
1286 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1287 dnl ---------------------------------------------------------------------------
1288 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1290 dnl You can always use "make -n" to see the actual options, but it is hard to
1291 dnl pick out/analyze warning messages when the compile-line is long.
1294 dnl ECHO_LT - symbol to control if libtool is verbose
1295 dnl ECHO_LD - symbol to prefix "cc -o" lines
1296 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1297 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1298 dnl ECHO_CC - symbol to put before any "cc" line
1300 AC_DEFUN([CF_DISABLE_ECHO],[
1301 AC_MSG_CHECKING(if you want to see long compiling messages)
1302 CF_ARG_DISABLE(echo,
1303 [ --disable-echo do not display "compiling" commands],
1306 ECHO_LD='@echo linking [$]@;'
1307 RULE_CC='@echo compiling [$]<'
1308 SHOW_CC='@echo compiling [$]@'
1317 AC_MSG_RESULT($enableval)
1324 dnl ---------------------------------------------------------------------------
1325 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
1326 dnl ----------------
1327 dnl Combine no-leak checks with the libraries or tools that are used for the
1329 AC_DEFUN([CF_DISABLE_LEAKS],[
1331 AC_REQUIRE([CF_WITH_DMALLOC])
1332 AC_REQUIRE([CF_WITH_DBMALLOC])
1333 AC_REQUIRE([CF_WITH_VALGRIND])
1335 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1336 AC_ARG_ENABLE(leaks,
1337 [ --disable-leaks test: free permanent memory, analyze leaks],
1338 [enable_leaks=$enableval],
1340 dnl with_no_leaks is more readable...
1341 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1342 AC_MSG_RESULT($with_no_leaks)
1344 if test "$enable_leaks" = no ; then
1345 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1346 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1349 dnl ---------------------------------------------------------------------------
1350 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1351 dnl ---------------------
1352 dnl The rpath-hack makes it simpler to build programs, particularly with the
1353 dnl *BSD ports which may have essential libraries in unusual places. But it
1354 dnl can interfere with building an executable for the base system. Use this
1355 dnl option in that case.
1356 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1358 AC_MSG_CHECKING(if rpath-hack should be disabled)
1359 CF_ARG_DISABLE(rpath-hack,
1360 [ --disable-rpath-hack don't add rpath options for additional libraries],
1361 [enable_rpath_hack=no],
1362 [enable_rpath_hack=yes])
1363 dnl TODO - drop cf_disable_rpath_hack
1364 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1365 AC_MSG_RESULT($cf_disable_rpath_hack)
1367 if test "$enable_rpath_hack" = yes ; then
1371 dnl ---------------------------------------------------------------------------
1372 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
1373 dnl ----------------------
1374 dnl On a few platforms, the compiler and/or loader nags with untruthful
1375 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1376 dnl and implying that most uses of the recommended alternatives are correct.
1378 dnl Factually speaking, no one has actually counted the number of uses of these
1379 dnl functions versus the total of incorrect uses. Samples of a few thousand
1380 dnl instances are meaningless compared to the hundreds of millions of lines of
1381 dnl existing C code.
1383 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1384 dnl platforms, in implementations of varying quality. Likewise, snprintf is
1385 dnl standard - but evolved through phases, and older implementations are likely
1386 dnl to yield surprising results, as documented in manpages on various systems.
1387 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1389 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1390 AC_ARG_ENABLE(string-hacks,
1391 [ --enable-string-hacks work around bogus compiler/loader warnings],
1392 [enable_string_hacks=$enableval],
1393 [enable_string_hacks=no])
1394 AC_MSG_RESULT($enable_string_hacks)
1396 if test "x$enable_string_hacks" = "xyes"; then
1397 AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1398 AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1399 AC_CHECK_FUNC(strlcat,[
1400 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1402 AC_CHECK_LIB(bsd,strlcat,[
1404 AC_CHECK_HEADERS(bsd/string.h)
1405 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1408 AC_CHECK_FUNCS( strlcpy snprintf )
1411 dnl ---------------------------------------------------------------------------
1412 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1413 dnl ------------------
1414 dnl Configure-option to enable gcc warnings
1416 dnl $1 = extra options to add, if supported
1417 dnl $2 = option for checking attributes. By default, this is done when
1418 dnl warnings are enabled. For other values:
1419 dnl yes: always do this, e.g., to use in generated library-headers
1420 dnl no: never do this
1421 AC_DEFUN([CF_ENABLE_WARNINGS],[
1422 if test "$GCC" = yes || test "$GXX" = yes
1424 CF_FIX_WARNINGS(CFLAGS)
1425 CF_FIX_WARNINGS(CPPFLAGS)
1426 CF_FIX_WARNINGS(LDFLAGS)
1427 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1428 CF_ARG_ENABLE(warnings,
1429 [ --enable-warnings test: turn on gcc compiler warnings],
1430 [enable_warnings=yes],
1431 [enable_warnings=no])
1432 AC_MSG_RESULT($enable_warnings)
1433 if test "$enable_warnings" = "yes"
1435 ifelse($2,,[CF_GCC_ATTRIBUTES])
1438 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1441 dnl ---------------------------------------------------------------------------
1442 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1444 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1445 dnl prefer a standard location, and use -L options only if we do not find the
1446 dnl library in the standard library location(s).
1447 dnl $1 = library name
1448 dnl $2 = library class, usually the same as library name
1450 dnl $4 = code fragment to compile/link
1451 dnl $5 = corresponding function-name
1452 dnl $6 = flag, nonnull if failure should not cause an error-exit
1454 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1455 dnl to use a -L option.
1456 AC_DEFUN([CF_FIND_LIBRARY],
1458 eval 'cf_cv_have_lib_'"$1"'=no'
1461 eval 'cf_cv_have_lib_'"$1"'=yes',[
1462 cf_save_LIBS="$LIBS"
1463 AC_MSG_CHECKING(for $5 in -l$1)
1465 AC_TRY_LINK([$3],[$4],
1467 eval 'cf_cv_have_lib_'"$1"'=yes'
1470 CF_LIBRARY_PATH(cf_search,$2)
1471 for cf_libdir in $cf_search
1473 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1474 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1475 AC_TRY_LINK([$3],[$4],
1477 eval 'cf_cv_have_lib_'"$1"'=yes'
1480 LIBS="$cf_save_LIBS"])
1484 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1486 if test "$cf_found_library" = no ; then
1487 AC_MSG_ERROR(Cannot link $1 library)
1491 dnl ---------------------------------------------------------------------------
1492 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1494 dnl Find a library (specifically the linkage used in the code fragment),
1495 dnl searching for it if it is not already in the library path.
1496 dnl See also CF_ADD_SEARCHPATH.
1498 dnl Parameters (4-on are optional):
1499 dnl $1 = headers for library entrypoint
1500 dnl $2 = code fragment for library entrypoint
1501 dnl $3 = the library name without the "-l" option or ".so" suffix.
1502 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1503 dnl $5 = action to perform if not successful
1504 dnl $6 = module name, if not the same as the library name
1505 dnl $7 = extra libraries
1507 dnl Sets these variables:
1508 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1509 dnl $cf_cv_header_path_$3 - include-directory if needed
1510 dnl $cf_cv_library_path_$3 - library-directory if needed
1511 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1512 AC_DEFUN([CF_FIND_LINKAGE],[
1514 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1515 # will be set on completion of the AC_TRY_LINK below.
1516 cf_cv_header_path_$3=
1517 cf_cv_library_path_$3=
1519 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1521 cf_save_LIBS="$LIBS"
1523 AC_TRY_LINK([$1],[$2],[
1524 cf_cv_find_linkage_$3=yes
1525 cf_cv_header_path_$3=/usr/include
1526 cf_cv_library_path_$3=/usr/lib
1529 LIBS="-l$3 $7 $cf_save_LIBS"
1531 AC_TRY_LINK([$1],[$2],[
1532 cf_cv_find_linkage_$3=yes
1533 cf_cv_header_path_$3=/usr/include
1534 cf_cv_library_path_$3=/usr/lib
1535 cf_cv_library_file_$3="-l$3"
1537 cf_cv_find_linkage_$3=no
1538 LIBS="$cf_save_LIBS"
1540 CF_VERBOSE(find linkage for $3 library)
1541 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1543 cf_save_CPPFLAGS="$CPPFLAGS"
1544 cf_test_CPPFLAGS="$CPPFLAGS"
1546 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1547 for cf_cv_header_path_$3 in $cf_search
1549 if test -d "$cf_cv_header_path_$3" ; then
1550 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1551 CPPFLAGS="$cf_save_CPPFLAGS"
1552 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1553 AC_TRY_COMPILE([$1],[$2],[
1554 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1555 cf_cv_find_linkage_$3=maybe
1556 cf_test_CPPFLAGS="$CPPFLAGS"
1558 CPPFLAGS="$cf_save_CPPFLAGS"
1563 if test "$cf_cv_find_linkage_$3" = maybe ; then
1565 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1567 cf_save_LIBS="$LIBS"
1568 cf_save_LDFLAGS="$LDFLAGS"
1571 CPPFLAGS="$cf_test_CPPFLAGS"
1572 LIBS="-l$3 $7 $cf_save_LIBS"
1573 AC_TRY_LINK([$1],[$2],[
1574 CF_VERBOSE(... found $3 library in system)
1575 cf_cv_find_linkage_$3=yes])
1576 CPPFLAGS="$cf_save_CPPFLAGS"
1577 LIBS="$cf_save_LIBS"
1580 if test "$cf_cv_find_linkage_$3" != yes ; then
1581 CF_LIBRARY_PATH(cf_search,$3)
1582 for cf_cv_library_path_$3 in $cf_search
1584 if test -d "$cf_cv_library_path_$3" ; then
1585 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1586 CPPFLAGS="$cf_test_CPPFLAGS"
1587 LIBS="-l$3 $7 $cf_save_LIBS"
1588 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1589 AC_TRY_LINK([$1],[$2],[
1590 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1591 cf_cv_find_linkage_$3=yes
1592 cf_cv_library_file_$3="-l$3"
1594 CPPFLAGS="$cf_save_CPPFLAGS"
1595 LIBS="$cf_save_LIBS"
1596 LDFLAGS="$cf_save_LDFLAGS"
1600 CPPFLAGS="$cf_save_CPPFLAGS"
1601 LDFLAGS="$cf_save_LDFLAGS"
1605 cf_cv_find_linkage_$3=no
1610 LIBS="$cf_save_LIBS"
1612 if test "$cf_cv_find_linkage_$3" = yes ; then
1614 CF_ADD_INCDIR($cf_cv_header_path_$3)
1615 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1619 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1622 dnl ---------------------------------------------------------------------------
1623 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1625 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1626 dnl "-Werror" flags can interfere with configure-checks. Those go into
1629 dnl $1 = variable name to repair
1630 define([CF_FIX_WARNINGS],[
1631 if test "$GCC" = yes || test "$GXX" = yes
1636 for cf_temp_scan in [$]$1
1638 case "x$cf_temp_scan" in
1640 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1643 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1646 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1650 if test "x[$]$1" != "x$cf_temp_flags"
1652 CF_VERBOSE(repairing $1: [$]$1)
1654 CF_VERBOSE(... fixed [$]$1)
1655 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1660 AC_SUBST(EXTRA_CFLAGS)
1662 dnl ---------------------------------------------------------------------------
1663 dnl CF_FUNC_CURSES_VERSION version: 9 updated: 2023/01/05 18:06:10
1664 dnl ----------------------
1665 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1666 dnl It's a character string "SVR4", not documented.
1667 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1669 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1671 $ac_includes_default
1673 #include <${cf_cv_ncurses_header:-curses.h}>
1678 sprintf(temp, "%.999s\\n", curses_version());
1679 ${cf_cv_main_return:-return}(0);
1681 ,[cf_cv_func_curses_version=yes]
1682 ,[cf_cv_func_curses_version=no]
1683 ,[cf_cv_func_curses_version=unknown])
1685 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1687 dnl ---------------------------------------------------------------------------
1688 dnl CF_FUNC_GETTIME version: 2 updated: 2023/02/25 08:45:56
1690 dnl Check for gettimeofday or clock_gettime. In 2023, the former is still more
1691 dnl widely supported, but "deprecated" (2008), so we will use the latter if it
1692 dnl is available, to reduce compiler warnings.
1693 AC_DEFUN([CF_FUNC_GETTIME],[
1694 AC_CACHE_CHECK(for clock_gettime,cf_cv_func_clock_gettime,[
1695 AC_TRY_LINK([#include <time.h>],
1696 [struct timespec ts;
1697 int rc = clock_gettime(CLOCK_REALTIME, &ts); (void) rc; (void)ts],
1698 [cf_cv_func_clock_gettime=yes],
1699 [cf_cv_func_clock_gettime=no])
1702 if test "$cf_cv_func_clock_gettime" = yes
1704 AC_DEFINE(HAVE_CLOCK_GETTIME,1,[Define to 1 if we have clock_gettime function])
1706 AC_CHECK_FUNC(gettimeofday,
1707 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
1709 AC_CHECK_LIB(bsd, gettimeofday,
1710 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
1711 CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
1714 dnl ---------------------------------------------------------------------------
1715 dnl CF_FUNC_OPENPTY version: 7 updated: 2023/12/03 09:21:34
1717 dnl Check for openpty() function, along with <pty.h> header. It may need the
1718 dnl "util" library as well.
1719 AC_DEFUN([CF_FUNC_OPENPTY],
1721 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1722 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1723 cf_save_LIBS="$LIBS"
1724 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1725 for cf_header in pty.h libutil.h util.h
1728 #include <$cf_header>
1730 int x = openpty((int *)0, (int *)0, (char *)0,
1731 (struct termios *)0, (struct winsize *)0);
1734 cf_cv_func_openpty=$cf_header
1737 cf_cv_func_openpty=no
1740 LIBS="$cf_save_LIBS"
1743 dnl ---------------------------------------------------------------------------
1744 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1745 dnl -----------------
1746 dnl Test for availability of useful gcc __attribute__ directives to quiet
1747 dnl compiler warnings. Though useful, not all are supported -- and contrary
1748 dnl to documentation, unrecognized directives cause older compilers to barf.
1749 AC_DEFUN([CF_GCC_ATTRIBUTES],
1750 [AC_REQUIRE([AC_PROG_FGREP])dnl
1751 AC_REQUIRE([CF_C11_NORETURN])dnl
1753 if test "$GCC" = yes || test "$GXX" = yes
1755 cat > conftest.i <<EOF
1757 #define GCC_PRINTF 0
1762 #ifndef GCC_NORETURN
1763 #define GCC_NORETURN /* nothing */
1766 #define GCC_UNUSED /* nothing */
1769 if test "$GCC" = yes
1771 AC_CHECKING([for $CC __attribute__ directives])
1772 cat > "conftest.$ac_ext" <<EOF
1773 #line __oline__ "${as_me:-configure}"
1775 #include "confdefs.h"
1776 #include "conftest.h"
1777 #include "conftest.i"
1779 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1781 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1784 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1786 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1788 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1789 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1790 extern GCC_NORETURN void foo(void);
1791 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1793 cf_printf_attribute=no
1794 cf_scanf_attribute=no
1795 for cf_attribute in scanf printf unused noreturn
1797 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1798 cf_directive="__attribute__(($cf_attribute))"
1799 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1801 case "$cf_attribute" in
1803 cf_printf_attribute=yes
1804 cat >conftest.h <<EOF
1805 #define GCC_$cf_ATTRIBUTE 1
1809 cf_scanf_attribute=yes
1810 cat >conftest.h <<EOF
1811 #define GCC_$cf_ATTRIBUTE 1
1815 cat >conftest.h <<EOF
1816 #define GCC_$cf_ATTRIBUTE $cf_directive
1821 if AC_TRY_EVAL(ac_compile); then
1822 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1823 cat conftest.h >>confdefs.h
1824 case "$cf_attribute" in
1826 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1829 cf_value='/* nothing */'
1830 if test "$cf_printf_attribute" != no ; then
1831 cf_value='__attribute__((format(printf,fmt,var)))'
1832 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1834 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1837 cf_value='/* nothing */'
1838 if test "$cf_scanf_attribute" != no ; then
1839 cf_value='__attribute__((format(scanf,fmt,var)))'
1840 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1842 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1845 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1851 ${FGREP-fgrep} define conftest.i >>confdefs.h
1856 dnl ---------------------------------------------------------------------------
1857 dnl CF_GCC_VERSION version: 9 updated: 2023/03/05 14:30:13
1859 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1860 dnl compatible), attempt to determine if icc/clang is actually used.
1861 AC_DEFUN([CF_GCC_VERSION],[
1862 AC_REQUIRE([AC_PROG_CC])
1864 if test "$GCC" = yes ; then
1865 AC_MSG_CHECKING(version of $CC)
1866 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1867 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1868 AC_MSG_RESULT($GCC_VERSION)
1870 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1871 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1873 dnl ---------------------------------------------------------------------------
1874 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1876 dnl Check if the compiler supports useful warning options. There's a few that
1877 dnl we don't use, simply because they're too noisy:
1879 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1880 dnl -Winline (usually not worthwhile)
1881 dnl -Wredundant-decls (system headers make this too noisy)
1882 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1883 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1884 dnl is enabled for ncurses using "--enable-const".
1888 dnl $1 is an optional list of gcc warning flags that a particular
1889 dnl application might want to use, e.g., "no-unused" for
1892 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1894 AC_DEFUN([CF_GCC_WARNINGS],
1896 AC_REQUIRE([CF_GCC_VERSION])
1897 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1898 cat > "conftest.$ac_ext" <<EOF
1899 #line __oline__ "${as_me:-configure}"
1900 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1902 if test "$INTEL_COMPILER" = yes
1904 # The "-wdXXX" options suppress warnings:
1905 # remark #1419: external declaration in primary source file
1906 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1907 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1908 # remark #193: zero used for undefined preprocessing identifier
1909 # remark #593: variable "curs_sb_left_arrow" was set but never used
1910 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1911 # remark #869: parameter "tw" was never referenced
1912 # remark #981: operands are evaluated in unspecified order
1913 # warning #279: controlling expression is constant
1915 AC_CHECKING([for $CC warning options])
1916 cf_save_CFLAGS="$CFLAGS"
1917 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1929 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1930 if AC_TRY_EVAL(ac_compile); then
1931 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1932 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1935 CFLAGS="$cf_save_CFLAGS"
1936 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1938 AC_CHECKING([for $CC warning options])
1939 cf_save_CFLAGS="$CFLAGS"
1941 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1942 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1943 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1944 for cf_opt in W Wall \
1945 Wbad-function-cast \
1948 Wdeclaration-after-statement \
1951 Wmissing-declarations \
1952 Wmissing-prototypes \
1956 Wstrict-prototypes \
1957 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1959 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1960 if AC_TRY_EVAL(ac_compile); then
1961 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1964 case "$GCC_VERSION" in
1966 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1971 case "$GCC_VERSION" in
1973 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1978 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1981 CFLAGS="$cf_save_CFLAGS"
1985 AC_SUBST(EXTRA_CFLAGS)
1987 dnl ---------------------------------------------------------------------------
1988 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1989 dnl ----------------
1990 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1991 dnl unistd.h or (nonstandard) in getopt.h
1992 AC_DEFUN([CF_GETOPT_HEADER],
1994 AC_HAVE_HEADERS(unistd.h getopt.h)
1995 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1996 cf_cv_getopt_header=none
1997 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2000 #include <$cf_header>],
2001 [int x = optind; char *y = optarg; (void)x; (void)y],
2002 [cf_cv_getopt_header=$cf_header
2006 if test "$cf_cv_getopt_header" != none ; then
2007 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2009 if test "$cf_cv_getopt_header" = getopt.h ; then
2010 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2013 dnl ---------------------------------------------------------------------------
2014 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
2016 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
2017 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
2018 dnl (or misfeature) of glibc2, which breaks portability of many applications,
2019 dnl since it is interwoven with GNU extensions.
2021 dnl Well, yes we could work around it...
2024 dnl $1 is the nominal value for _XOPEN_SOURCE
2025 AC_DEFUN([CF_GNU_SOURCE],
2027 cf_gnu_xopen_source=ifelse($1,,500,$1)
2029 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2030 AC_TRY_COMPILE([#include <sys/types.h>],[
2031 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
2033 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2036 # error not GNU C library
2038 [cf_cv_gnu_library=yes],
2039 [cf_cv_gnu_library=no])
2042 if test x$cf_cv_gnu_library = xyes; then
2044 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2045 # was changed to help a little. newlib incorporated the change about 4
2047 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2049 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2050 AC_TRY_COMPILE([#include <sys/types.h>],[
2051 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2053 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2056 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2058 [cf_cv_gnu_library_219=yes],
2059 [cf_cv_gnu_library_219=no])
2063 if test "x$cf_cv_gnu_library_219" = xyes; then
2065 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2066 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2069 #include <sys/types.h>
2071 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2074 # error GNU C library is too old
2076 [cf_cv_gnu_dftsrc_219=yes],
2077 [cf_cv_gnu_dftsrc_219=no])
2079 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2081 cf_cv_gnu_dftsrc_219=maybe
2084 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2086 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2087 AC_TRY_COMPILE([#include <sys/types.h>],[
2088 #ifndef _XOPEN_SOURCE
2089 #error expected _XOPEN_SOURCE to be defined
2091 [cf_cv_gnu_source=no],
2092 [cf_save="$CPPFLAGS"
2093 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2094 AC_TRY_COMPILE([#include <sys/types.h>],[
2095 #ifdef _XOPEN_SOURCE
2096 #error expected _XOPEN_SOURCE to be undefined
2098 [cf_cv_gnu_source=no],
2099 [cf_cv_gnu_source=yes])
2104 if test "$cf_cv_gnu_source" = yes
2106 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2107 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2108 AC_TRY_COMPILE([#include <sys/types.h>],[
2109 #ifdef _DEFAULT_SOURCE
2110 #error expected _DEFAULT_SOURCE to be undefined
2112 [cf_cv_default_source=no],
2113 [cf_cv_default_source=yes])
2115 if test "$cf_cv_default_source" = yes
2117 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2124 dnl ---------------------------------------------------------------------------
2125 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2127 dnl Construct a search-list of directories for a nonstandard header-file
2130 dnl $1 = the variable to return as result
2131 dnl $2 = the package name
2132 AC_DEFUN([CF_HEADER_PATH],
2136 # collect the current set of include-directories from compiler flags
2137 cf_header_path_list=""
2138 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2139 for cf_header_path in $CPPFLAGS $CFLAGS
2141 case "$cf_header_path" in
2143 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2144 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2145 cf_header_path_list="$cf_header_path_list [$]$1"
2151 # add the variations for the package we are looking for
2152 CF_SUBDIR_PATH($1,$2,include)
2154 test "$includedir" != NONE && \
2155 test "$includedir" != "/usr/include" && \
2156 test -d "$includedir" && {
2157 test -d "$includedir" && $1="[$]$1 $includedir"
2158 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2161 test "$oldincludedir" != NONE && \
2162 test "$oldincludedir" != "/usr/include" && \
2163 test -d "$oldincludedir" && {
2164 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2165 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2168 $1="[$]$1 $cf_header_path_list"
2170 dnl ---------------------------------------------------------------------------
2171 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2173 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2174 AC_DEFUN([CF_HELP_MESSAGE],
2175 [CF_ACVERSION_CHECK(2.53,[],[
2176 AC_DIVERT_HELP($1)])dnl
2178 dnl ---------------------------------------------------------------------------
2179 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2180 dnl -----------------
2181 dnl If we do not have a given script, look for it in the parent directory.
2182 AC_DEFUN([CF_INHERIT_SCRIPT],
2184 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2186 dnl ---------------------------------------------------------------------------
2187 dnl CF_INSTALL_OPTS version: 3 updated: 2023/06/03 15:17:30
2189 dnl prompt for/fill-in useful install-program options
2190 AC_DEFUN([CF_INSTALL_OPTS],
2195 CF_INSTALL_OPT_STRIP_PROG
2197 dnl ---------------------------------------------------------------------------
2198 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2199 dnl ----------------
2200 dnl Almost all "install" programs default to the current user's ownership.
2201 dnl Almost - MINIX is an exception.
2202 AC_DEFUN([CF_INSTALL_OPT_O],
2204 AC_MSG_CHECKING(if install needs to be told about ownership)
2205 case `$ac_config_guess` in
2214 AC_MSG_RESULT($with_install_o)
2215 if test "x$with_install_o" = xyes
2217 INSTALL_OPT_O="`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`"
2222 AC_SUBST(INSTALL_OPT_O)
2224 dnl ---------------------------------------------------------------------------
2225 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2226 dnl ----------------
2227 dnl Some install-programs accept a "-p" option to preserve file modification
2228 dnl timestamps. That can be useful as an install option, as well as a way to
2229 dnl avoid the need for ranlib after copying a static archive.
2230 AC_DEFUN([CF_INSTALL_OPT_P],
2232 : "${INSTALL:=install}"
2233 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2238 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2240 if test -f conftest.out/conftest.in
2242 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2243 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2244 if test -s conftest.err
2259 dnl ---------------------------------------------------------------------------
2260 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2261 dnl ----------------
2262 dnl By default, we should strip executables which are installed, but leave the
2263 dnl ability to suppress that for unit-testing.
2264 AC_DEFUN([CF_INSTALL_OPT_S],
2266 AC_MSG_CHECKING(if you want to install stripped executables)
2267 CF_ARG_DISABLE(stripping,
2268 [ --disable-stripping do not strip (debug info) installed executables],
2269 [enable_stripping=no],
2270 [enable_stripping=yes])
2271 AC_MSG_RESULT($enable_stripping)
2273 if test "$enable_stripping" = yes
2279 AC_SUBST(INSTALL_OPT_S)
2281 dnl ---------------------------------------------------------------------------
2282 dnl CF_INSTALL_OPT_STRIP_PROG version: 1 updated: 2023/06/03 15:17:30
2283 dnl -------------------------
2284 dnl Provide an option for overriding the strip program used in install "-s"
2286 dnl coreutils install provides a --strip-program option
2287 dnl FreeBSD uses STRIPBIN environment variable, while NetBSD and OpenBSD use
2288 dnl STRIP environment variable. Other versions of install do not support this.
2289 AC_DEFUN([CF_INSTALL_OPT_STRIP_PROG],
2291 AC_REQUIRE([CF_INSTALL_OPT_S])
2292 if test -n "$INSTALL_OPT_S"
2294 AC_MSG_CHECKING(if you want to specify strip-program)
2295 AC_ARG_WITH(strip-program,
2296 [ --with-strip-program=XX specify program to use when stripping in install],
2297 [with_strip_program=$withval],
2298 [with_strip_program=no])
2299 AC_MSG_RESULT($with_strip_program)
2300 if test "$with_strip_program" != no
2302 AC_MSG_CHECKING(if strip-program is supported with this installer)
2303 cf_install_program=`echo "$INSTALL" | sed -e 's%[[ ]]*[[ ]]-.%%'`
2304 check_install_strip=no
2305 if test -f "$cf_install_program"
2307 check_install_version=`"$cf_install_program" --version 2>/dev/null | head -n 1 | grep coreutils`
2308 if test -n "$check_install_version"
2310 check_install_strip="option"
2312 for check_strip_variable in STRIPBIN STRIP
2314 if strings "$cf_install_program" | grep "^$check_strip_variable[$]" >/dev/null
2316 check_install_strip="environ"
2322 AC_MSG_RESULT($check_install_strip)
2323 case "$check_install_strip" in
2325 AC_MSG_WARN($cf_install_program does not support strip program option)
2326 with_strip_program=no
2329 cat >install.tmp <<-CF_EOF
2331 STRIPBIN="$with_strip_program" \\
2332 STRIP="$with_strip_program" \\
2335 INSTALL="`pwd`/install.tmp"
2337 CF_VERBOSE(created $INSTALL)
2340 INSTALL_OPT_S="$INSTALL_OPT_S --strip-program=\"$with_strip_program\""
2345 AC_SUBST(INSTALL_OPT_S)
2347 dnl ---------------------------------------------------------------------------
2348 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2349 dnl -----------------
2350 dnl Check if the given compiler is really the Intel compiler for Linux. It
2351 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2352 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2354 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2355 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2356 dnl the wrappers for gcc and g++ warnings.
2358 dnl $1 = GCC (default) or GXX
2359 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2360 dnl $3 = CFLAGS (default) or CXXFLAGS
2361 AC_DEFUN([CF_INTEL_COMPILER],[
2362 AC_REQUIRE([AC_CANONICAL_HOST])
2363 ifelse([$2],,INTEL_COMPILER,[$2])=no
2365 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2368 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2369 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2370 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2372 #ifdef __INTEL_COMPILER
2374 #error __INTEL_COMPILER is not defined
2376 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2377 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2379 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2380 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2385 dnl ---------------------------------------------------------------------------
2386 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2388 dnl For the given system and compiler, find the compiler flags to pass to the
2389 dnl loader to use the "rpath" feature.
2390 AC_DEFUN([CF_LD_RPATH_OPT],
2392 AC_REQUIRE([CF_CHECK_CACHE])
2395 if test "x$cf_cv_enable_rpath" != xno
2397 AC_MSG_CHECKING(for an rpath option)
2398 case "$cf_cv_system_name" in
2400 if test "$GCC" = yes; then
2401 LD_RPATH_OPT="-Wl,-rpath,"
2403 LD_RPATH_OPT="-rpath "
2406 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2407 LD_RPATH_OPT="-Wl,-rpath,"
2409 (openbsd[[2-9]].*|mirbsd*)
2410 LD_RPATH_OPT="-Wl,-rpath,"
2413 LD_RPATH_OPT="-rpath "
2416 LD_RPATH_OPT="-Wl,-rpath,"
2419 LD_RPATH_OPT="-rpath "
2427 AC_MSG_RESULT($LD_RPATH_OPT)
2429 case "x$LD_RPATH_OPT" in
2431 AC_MSG_CHECKING(if we need a space after rpath option)
2432 cf_save_LIBS="$LIBS"
2433 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2434 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2435 LIBS="$cf_save_LIBS"
2436 AC_MSG_RESULT($cf_rpath_space)
2437 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2442 dnl ---------------------------------------------------------------------------
2443 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2445 dnl Construct a search-list of directories for a nonstandard library-file
2448 dnl $1 = the variable to return as result
2449 dnl $2 = the package name
2450 AC_DEFUN([CF_LIBRARY_PATH],
2453 cf_library_path_list=""
2454 if test -n "${LDFLAGS}${LIBS}" ; then
2455 for cf_library_path in $LDFLAGS $LIBS
2457 case "$cf_library_path" in
2459 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2460 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2461 cf_library_path_list="$cf_library_path_list [$]$1"
2467 CF_SUBDIR_PATH($1,$2,lib)
2469 $1="$cf_library_path_list [$]$1"
2471 dnl ---------------------------------------------------------------------------
2472 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2474 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2475 dnl acts as a placeholder.
2477 dnl The ".PHONY" feature was proposed in 2011 here
2478 dnl https://www.austingroupbugs.net/view.php?id=523
2479 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2481 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2482 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2484 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2485 dnl date unspecified).
2487 dnl + It was adopted in NetBSD make in June 1995.
2489 dnl + The other BSD make programs are derived from the NetBSD make (and for
2490 dnl that reason are not actually different "implementations").
2492 dnl + Some features of NetBSD make were actually adapted from pmake, which
2493 dnl began as a modified GNU make starting in 1993.
2495 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2496 dnl GNU make extension, but is less well known than the BSD make.
2497 AC_DEFUN([CF_MAKE_PHONY],[
2498 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2501 mkdir conftest || exit 1
2503 cat >makefile <<'CF_EOF'
2507 @echo "** making [$]@ [$](DATA)"
2509 @echo "** making [$]@ [$](DATA)"
2511 @echo "** making [$]@ [$](DATA)"
2512 echo [$](DATA) > [$]@
2514 @echo "** making [$]@ [$](DATA)"
2515 echo [$](DATA) > [$]@
2517 for cf_data in 1 2 3
2519 ${MAKE:-make} always DATA=$cf_data
2520 ${MAKE:-make} once DATA=$cf_data
2521 ${MAKE:-make} -t always once
2522 if test -f always ; then
2523 echo "no (case 1)" > ../conftest.tmp
2524 elif test ! -f always.out ; then
2525 echo "no (case 2)" > ../conftest.tmp
2526 elif test ! -f once.out ; then
2527 echo "no (case 3)" > ../conftest.tmp
2528 elif ! cmp -s always.out once.out ; then
2529 echo "no (case 4)" > ../conftest.tmp
2530 diff always.out once.out
2532 cf_check="`cat always.out`"
2533 if test "x$cf_check" != "x$cf_data" ; then
2534 echo "no (case 5)" > ../conftest.tmp
2536 echo yes > ../conftest.tmp
2544 cf_cv_make_PHONY="`cat conftest.tmp`"
2549 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2550 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2551 AC_SUBST(MAKE_NO_PHONY)
2552 AC_SUBST(MAKE_PHONY)
2554 dnl ---------------------------------------------------------------------------
2555 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2557 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2558 dnl a monocase filesystem.
2559 AC_DEFUN([CF_MAKE_TAGS],[
2560 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2562 AC_CHECK_PROGS(CTAGS, exctags ctags)
2563 AC_CHECK_PROGS(ETAGS, exetags etags)
2565 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2567 if test "$cf_cv_mixedcase" = yes ; then
2568 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2573 if test "$MAKE_UPPER_TAGS" = yes ; then
2579 if test "$MAKE_LOWER_TAGS" = yes ; then
2588 AC_SUBST(MAKE_UPPER_TAGS)
2589 AC_SUBST(MAKE_LOWER_TAGS)
2591 dnl ---------------------------------------------------------------------------
2592 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2594 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2595 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2596 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2597 AC_DEFUN([CF_MATH_LIB],
2599 AC_CACHE_CHECK(if -lm needed for math functions,
2606 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2607 [cf_cv_need_libm=no],
2608 [cf_cv_need_libm=yes])])
2610 if test "$cf_cv_need_libm" = yes
2613 cf_save_LIBS="$LIBS"
2615 AC_CACHE_CHECK(if -lm is available for math functions,
2622 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2623 [cf_cv_have_libm=yes],
2624 [cf_cv_have_libm=no])])
2625 LIBS="$cf_save_LIBS"
2627 if test "$cf_cv_have_libm" = yes
2629 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2635 if test "$cf_cv_have_libm" = yes
2637 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2640 dnl ---------------------------------------------------------------------------
2641 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2642 dnl ----------------------
2643 dnl Check if the file-system supports mixed-case filenames. If we're able to
2644 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2645 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2647 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2648 if test "$cross_compiling" = yes ; then
2649 case "$target_alias" in
2650 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2658 rm -f conftest CONFTEST
2660 if test -f CONFTEST ; then
2665 rm -f conftest CONFTEST
2668 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2670 dnl ---------------------------------------------------------------------------
2671 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2673 dnl Write a debug message to config.log, along with the line number in the
2674 dnl configure script.
2675 AC_DEFUN([CF_MSG_LOG],[
2676 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2678 dnl ---------------------------------------------------------------------------
2679 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
2680 dnl -------------------
2681 dnl Check if we can compile with ncurses' header file
2682 dnl $1 is the cache variable to set
2683 dnl $2 is the header-file to include
2684 dnl $3 is the root name (ncurses or ncursesw)
2685 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2687 ]ifelse($3,ncursesw,[
2688 #define _XOPEN_SOURCE_EXTENDED
2689 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2690 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2693 #ifdef NCURSES_VERSION
2694 ]ifelse($3,ncursesw,[
2696 #error WACS_BSSB is not defined
2699 printf("%s\\n", NCURSES_VERSION);
2704 #error __NCURSES_H is not defined
2711 dnl ---------------------------------------------------------------------------
2712 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2713 dnl -----------------
2714 dnl Tie together the configure-script macros for ncurses, preferring these in
2716 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2717 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2718 dnl c) just plain libraries
2720 dnl $1 is the root library name (default: "ncurses")
2721 AC_DEFUN([CF_NCURSES_CONFIG],[
2722 AC_REQUIRE([CF_PKG_CONFIG])
2723 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2724 cf_have_ncuconfig=no
2726 if test "x${PKG_CONFIG:=none}" != xnone; then
2727 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2728 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2731 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2732 cf_have_ncuconfig=unknown
2734 cf_save_CFLAGS="$CFLAGS"
2735 cf_save_CPPFLAGS="$CPPFLAGS"
2736 cf_save_LIBS="$LIBS"
2738 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2739 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2741 # while -W for passing linker flags is prevalent, it is not "standard".
2742 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2743 # incompatible _and_ non-standard -W option which gives an error. Work
2744 # around that pitfall.
2745 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2747 CF_ADD_CFLAGS($cf_pkg_cflags)
2748 CF_ADD_LIBS($cf_pkg_libs)
2750 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2751 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2752 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2754 { const char *xx = curses_version(); return (xx == 0); }],
2755 [cf_test_ncuconfig=yes],
2756 [cf_test_ncuconfig=no],
2757 [cf_test_ncuconfig=maybe])],
2758 [cf_test_ncuconfig=no])
2760 CFLAGS="$cf_save_CFLAGS"
2761 CPPFLAGS="$cf_save_CPPFLAGS"
2762 LIBS="$cf_save_LIBS"
2764 if test "x$cf_test_ncuconfig" != xyes; then
2765 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2766 cf_pkg_cflags="$cf_temp"
2767 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2768 cf_pkg_libs="$cf_temp"
2773 CF_APPEND_CFLAGS($cf_pkg_cflags)
2774 CF_ADD_LIBS($cf_pkg_libs)
2776 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2777 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2778 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2780 { const char *xx = curses_version(); return (xx == 0); }],
2781 [cf_have_ncuconfig=yes],
2782 [cf_have_ncuconfig=no],
2783 [cf_have_ncuconfig=maybe])],
2784 [cf_have_ncuconfig=no])
2785 AC_MSG_RESULT($cf_have_ncuconfig)
2786 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2787 if test "$cf_have_ncuconfig" != "yes"
2789 CPPFLAGS="$cf_save_CPPFLAGS"
2790 LIBS="$cf_save_LIBS"
2791 NCURSES_CONFIG_PKG=none
2793 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2794 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2800 NCURSES_CONFIG_PKG=none
2803 NCURSES_CONFIG_PKG=none
2806 if test "x$cf_have_ncuconfig" = "xno"; then
2807 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2809 CF_ACVERSION_CHECK(2.52,
2810 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2811 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2813 if test "$NCURSES_CONFIG" != none ; then
2815 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2816 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2818 # even with config script, some packages use no-override for curses.h
2819 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2821 dnl like CF_NCURSES_CPPFLAGS
2822 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2824 dnl like CF_NCURSES_LIBS
2825 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2826 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2828 dnl like CF_NCURSES_VERSION
2829 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2833 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2834 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2841 dnl ---------------------------------------------------------------------------
2842 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2843 dnl -------------------
2844 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2845 dnl the CPPFLAGS variable so we can include its header.
2847 dnl The header files may be installed as either curses.h, or ncurses.h (would
2848 dnl be obsolete, except that some packagers prefer this name to distinguish it
2849 dnl from a "native" curses implementation). If not installed for overwrite,
2850 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2851 dnl /usr/include/ncurses), but someone may have installed overwriting the
2852 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2853 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2856 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2857 dnl is already in the include-path, don't even bother with this, since we cannot
2858 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2860 dnl The optional parameter gives the root name of the library, in case it is
2861 dnl not installed as the default curses library. That is how the
2862 dnl wide-character version of ncurses is installed.
2863 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2864 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2866 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2867 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2869 test -n "$cf_cv_curses_dir" && \
2870 test "$cf_cv_curses_dir" != "no" && { \
2871 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2874 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2875 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2876 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2877 for cf_header in $cf_header_list
2879 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2880 test "$cf_cv_ncurses_h" != no && break
2887 # some applications need this, but should check for NCURSES_VERSION
2888 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2892 dnl ---------------------------------------------------------------------------
2893 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2894 dnl --------------------
2895 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2896 dnl may provide these functions. Define the symbol if it is not defined, and
2898 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2900 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2902 #include <${cf_cv_ncurses_header:-curses.h}>],
2904 int x = NCURSES_EXT_FUNCS
2905 ],[cf_cv_ncurses_ext_funcs=defined],[
2907 #include <${cf_cv_ncurses_header:-curses.h}>],
2909 (void) assume_default_colors (0, 0);
2910 (void) curses_version ();
2911 (void) define_key (0, 0);
2912 (void) is_term_resized (0, 0);
2913 (void) key_defined (0);
2914 (void) keybound (0, 0);
2915 (void) keyok (0, 0);
2916 (void) resize_term (0, 0);
2917 (void) resizeterm (0, 0);
2918 (void) use_default_colors ();
2919 (void) use_extended_names (0);
2920 (void) wresize (0, 0, 0);],
2921 [cf_cv_ncurses_ext_funcs=yes],
2922 [cf_cv_ncurses_ext_funcs=no])
2925 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2927 dnl ---------------------------------------------------------------------------
2928 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2929 dnl -----------------
2930 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2931 dnl variations of ncurses' installs.
2933 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2934 AC_DEFUN([CF_NCURSES_HEADER],[
2936 if test "$cf_cv_ncurses_h" != no ; then
2937 cf_cv_ncurses_header=$cf_cv_ncurses_h
2940 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2941 test -n "$verbose" && echo
2942 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2943 test -n "$verbose" && echo "search path $cf_search"
2944 cf_save2_CPPFLAGS="$CPPFLAGS"
2945 for cf_incdir in $cf_search
2947 CF_ADD_INCDIR($cf_incdir)
2952 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2953 if test "$cf_cv_ncurses_h2" != no ; then
2954 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2955 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2958 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2960 CPPFLAGS="$cf_save2_CPPFLAGS"
2961 test "$cf_cv_ncurses_h2" != no && break
2963 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2966 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2967 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2968 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2969 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2971 CF_ADD_INCDIR($cf_1st_incdir)
2975 # Set definitions to allow ifdef'ing for ncurses.h
2977 case "$cf_cv_ncurses_header" in
2979 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2983 case "$cf_cv_ncurses_header" in
2984 (ncurses/curses.h|ncurses/ncurses.h)
2985 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2987 (ncursesw/curses.h|ncursesw/ncurses.h)
2988 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2993 dnl ---------------------------------------------------------------------------
2994 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2996 dnl Look for the ncurses library. This is a little complicated on Linux,
2997 dnl because it may be linked with the gpm (general purpose mouse) library.
2998 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2999 dnl unusable with ncurses. However, we don't want to link with gpm unless
3000 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3001 dnl and the linker will record a dependency.
3003 dnl The optional parameter gives the root name of the library, in case it is
3004 dnl not installed as the default curses library. That is how the
3005 dnl wide-character version of ncurses is installed.
3006 AC_DEFUN([CF_NCURSES_LIBS],
3007 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3009 cf_nculib_root=ifelse($1,,ncurses,$1)
3010 # This works, except for the special case where we find gpm, but
3011 # ncurses is in a nonstandard location via $LIBS, and we really want
3014 cf_ncurses_SAVE="$LIBS"
3015 AC_CHECK_LIB(gpm,Gpm_Open,
3016 [AC_CHECK_LIB(gpm,initscr,
3017 [LIBS="$cf_ncurses_SAVE"],
3018 [cf_ncurses_LIBS="-lgpm"])])
3022 # This is only necessary if you are linking against an obsolete
3023 # version of ncurses (but it should do no harm, since it is static).
3024 if test "$cf_nculib_root" = ncurses ; then
3025 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3030 CF_ADD_LIBS($cf_ncurses_LIBS)
3032 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3034 CF_ADD_LIBS(-l$cf_nculib_root)
3036 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3037 [#include <${cf_cv_ncurses_header:-curses.h}>],
3042 if test -n "$cf_ncurses_LIBS" ; then
3043 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3044 cf_ncurses_SAVE="$LIBS"
3045 for p in $cf_ncurses_LIBS ; do
3046 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3047 if test "$q" != "$LIBS" ; then
3051 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3052 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3053 [AC_MSG_RESULT(yes)],
3055 LIBS="$cf_ncurses_SAVE"])
3058 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3059 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3061 dnl ---------------------------------------------------------------------------
3062 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
3063 dnl -------------------
3064 dnl Use this followup check to ensure that we link with pthreads if ncurses
3066 AC_DEFUN([CF_NCURSES_PTHREADS],[
3067 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
3068 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
3069 cf_cv_ncurses_pthreads=yes,
3070 cf_cv_ncurses_pthreads=no)
3071 if test "$cf_cv_ncurses_pthreads" = yes
3073 CF_ADD_LIBS(-lpthread)
3076 dnl ---------------------------------------------------------------------------
3077 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
3078 dnl ------------------
3079 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3080 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
3081 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3082 AC_DEFUN([CF_NCURSES_VERSION],
3084 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3085 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3086 cf_cv_ncurses_version=no
3088 rm -f "$cf_tempfile"
3090 $ac_includes_default
3092 #include <${cf_cv_ncurses_header:-curses.h}>
3096 FILE *fp = fopen("$cf_tempfile", "w");
3097 #ifdef NCURSES_VERSION
3098 # ifdef NCURSES_VERSION_PATCH
3099 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3101 fprintf(fp, "%s\\n", NCURSES_VERSION);
3105 fprintf(fp, "old\\n");
3110 ${cf_cv_main_return:-return}(0);
3112 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3114 # This will not work if the preprocessor splits the line after the
3115 # Autoconf token. The 'unproto' program does that.
3116 cat > "conftest.$ac_ext" <<EOF
3117 #include <${cf_cv_ncurses_header:-curses.h}>
3119 #ifdef NCURSES_VERSION
3120 Autoconf NCURSES_VERSION
3128 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3130 if test -f conftest.out ; then
3131 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3132 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3136 rm -f "$cf_tempfile"
3138 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3140 dnl ---------------------------------------------------------------------------
3141 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3142 dnl ----------------------
3143 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3144 dnl wrapped with a function to help with concurrency control.
3145 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3147 AC_MSG_CHECKING(for ncurses wrap-prefix)
3148 AC_ARG_WITH(ncurses-wrap-prefix,
3149 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3150 [NCURSES_WRAP_PREFIX=$withval],
3151 [NCURSES_WRAP_PREFIX=_nc_])
3152 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3154 AC_SUBST(NCURSES_WRAP_PREFIX)
3156 dnl ---------------------------------------------------------------------------
3157 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3158 dnl ----------------
3159 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3160 dnl Some workarounds are needed in client programs to allow them to compile.
3161 AC_DEFUN([CF_NETBSD_FORM_H],[
3162 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3164 #include <${cf_cv_ncurses_header:-curses.h}>
3168 int y = current_field(form)->cursor_ypos;
3169 int x = current_field(form)->cursor_xpos;
3170 ],[cf_cv_netbsd_form_h=yes
3171 ],[cf_cv_netbsd_form_h=no])
3174 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3176 dnl ---------------------------------------------------------------------------
3177 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3178 dnl ----------------
3179 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3180 dnl Some workarounds are needed in client programs to allow them to compile.
3181 AC_DEFUN([CF_NETBSD_MENU_H],[
3182 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3184 #include <${cf_cv_ncurses_header:-curses.h}>
3188 int y = menu->max_item_width;
3189 ],[cf_cv_netbsd_menu_h=yes
3190 ],[cf_cv_netbsd_menu_h=no])
3193 test "$cf_cv_netbsd_menu_h" = yes && AC_DEFINE(HAVE_NETBSD_MENU_H,1,[Define to 1 if we appear to be using NetBSD menu.h])
3195 dnl ---------------------------------------------------------------------------
3196 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3197 dnl ------------------
3198 dnl see CF_WITH_NO_LEAKS
3200 dnl $1 = option/name
3202 dnl $3 = symbol to define if the option is set
3203 dnl $4 = additional actions to take if the option is set
3204 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3205 AC_MSG_CHECKING(if you want to use $1 for testing)
3208 [case "x$withval" in
3211 : "${with_cflags:=-g}"
3212 : "${enable_leaks:=no}"
3214 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3220 AC_MSG_RESULT(${with_$1:-no})
3222 case ".$with_cflags" in
3234 dnl ---------------------------------------------------------------------------
3235 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3237 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3238 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3239 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3240 dnl delayed evaluation of those symbols.
3241 AC_DEFUN([CF_PATH_SYNTAX],[
3242 if test "x$prefix" != xNONE; then
3243 cf_path_syntax="$prefix"
3245 cf_path_syntax="$ac_default_prefix"
3249 (.\[$]\(*\)*|.\'*\'*)
3253 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3255 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3259 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3264 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3267 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3271 dnl ---------------------------------------------------------------------------
3272 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3274 dnl Configure for PDCurses' X11 library
3275 AC_DEFUN([CF_PDCURSES_X11],[
3276 AC_REQUIRE([CF_X_ATHENA])
3278 CF_ACVERSION_CHECK(2.52,
3279 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3280 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3282 if test "$XCURSES_CONFIG" != none ; then
3284 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3285 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3287 cf_cv_lib_XCurses=yes
3291 LDFLAGS="$LDFLAGS $X_LIBS"
3292 CF_CHECK_CFLAGS($X_CFLAGS)
3293 AC_CHECK_LIB(X11,XOpenDisplay,
3294 [CF_ADD_LIBS(-lX11)],,
3295 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3296 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3297 CF_ADD_LIBS(-lXCurses)
3299 #include <xcurses.h>
3300 char *XCursesProgramName = "test";
3302 [cf_cv_lib_XCurses=yes],
3303 [cf_cv_lib_XCurses=no])
3308 if test "$cf_cv_lib_XCurses" = yes ; then
3309 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3310 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3311 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3313 AC_MSG_ERROR(Cannot link with XCurses)
3316 dnl ---------------------------------------------------------------------------
3317 dnl CF_PKG_CONFIG version: 13 updated: 2023/10/28 11:59:01
3319 dnl Check for the package-config program, unless disabled by command-line.
3321 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3322 AC_DEFUN([CF_PKG_CONFIG],
3324 AC_MSG_CHECKING(if you want to use pkg-config)
3325 AC_ARG_WITH(pkg-config,
3326 [[ --with-pkg-config[=CMD] enable/disable use of pkg-config and its name CMD]],
3327 [cf_pkg_config=$withval],
3328 [cf_pkg_config=yes])
3329 AC_MSG_RESULT($cf_pkg_config)
3331 case "$cf_pkg_config" in
3336 CF_ACVERSION_CHECK(2.52,
3337 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3338 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3345 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3346 if test "$PKG_CONFIG" != none ; then
3347 CF_PATH_SYNTAX(PKG_CONFIG)
3348 elif test "x$cf_pkg_config" != xno ; then
3349 AC_MSG_WARN(pkg-config is not installed)
3352 AC_SUBST(PKG_CONFIG)
3354 dnl ---------------------------------------------------------------------------
3355 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3356 dnl -----------------
3357 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3359 dnl POSIX.1-1990 _POSIX_SOURCE
3360 dnl POSIX.1-1990 and _POSIX_SOURCE and
3361 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3363 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3364 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3365 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3368 dnl $1 is the nominal value for _POSIX_C_SOURCE
3369 AC_DEFUN([CF_POSIX_C_SOURCE],
3370 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3372 if test "$cf_cv_posix_visible" = no; then
3374 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3376 cf_save_CFLAGS="$CFLAGS"
3377 cf_save_CPPFLAGS="$CPPFLAGS"
3379 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3380 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3382 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3383 CF_MSG_LOG(if the symbol is already defined go no further)
3384 AC_TRY_COMPILE([#include <sys/types.h>],[
3385 #ifndef _POSIX_C_SOURCE
3386 #error _POSIX_C_SOURCE is not defined
3388 [cf_cv_posix_c_source=no],
3389 [cf_want_posix_source=no
3390 case .$cf_POSIX_C_SOURCE in
3392 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3395 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3396 cf_want_posix_source=yes
3399 cf_want_posix_source=yes
3402 if test "$cf_want_posix_source" = yes ; then
3403 AC_TRY_COMPILE([#include <sys/types.h>],[
3404 #ifdef _POSIX_SOURCE
3405 #error _POSIX_SOURCE is defined
3407 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3409 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3410 CFLAGS="$cf_trim_CFLAGS"
3411 CPPFLAGS="$cf_trim_CPPFLAGS"
3412 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3413 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3414 AC_TRY_COMPILE([#include <sys/types.h>],[
3415 #ifndef _POSIX_C_SOURCE
3416 #error _POSIX_C_SOURCE is not defined
3418 [cf_cv_posix_c_source=no])
3419 CFLAGS="$cf_save_CFLAGS"
3420 CPPFLAGS="$cf_save_CPPFLAGS"
3424 if test "$cf_cv_posix_c_source" != no ; then
3425 CFLAGS="$cf_trim_CFLAGS"
3426 CPPFLAGS="$cf_trim_CPPFLAGS"
3427 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3430 fi # cf_cv_posix_visible
3433 dnl ---------------------------------------------------------------------------
3434 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3435 dnl ----------------
3436 dnl POSIX documents test-macros which an application may set before any system
3437 dnl headers are included to make features available.
3439 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3440 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3441 dnl recent features visible in the system header files unless the application
3442 dnl overrides the corresponding test-macros. Doing that introduces portability
3445 dnl This macro makes a special check for the symbols used for this, to avoid a
3446 dnl conflicting definition.
3447 AC_DEFUN([CF_POSIX_VISIBLE],
3449 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3450 AC_TRY_COMPILE([#include <stdio.h>],[
3451 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3452 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3453 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3454 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3455 #error conflicting symbols found
3457 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3460 dnl ---------------------------------------------------------------------------
3461 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3463 dnl Append definitions and rules for the given programs to the subdirectory
3464 dnl Makefiles, and the recursion rule for the top-level Makefile.
3467 dnl $1 = script to run
3468 dnl $2 = list of subdirectories
3472 AC_DEFUN([CF_PRG_RULES],
3476 if test ! -d "$srcdir/$cf_dir" ; then
3478 elif test -f "$srcdir/$cf_dir/programs" ; then
3479 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3484 dnl ---------------------------------------------------------------------------
3485 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3487 dnl standard check for CC, plus followup sanity checks
3488 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3489 AC_DEFUN([CF_PROG_CC],[
3490 CF_ACVERSION_CHECK(2.53,
3491 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3492 AC_REQUIRE([AC_PROG_CC])],
3494 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3496 CF_ACVERSION_CHECK(2.52,
3501 dnl ---------------------------------------------------------------------------
3502 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3504 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3505 dnl misc/tabset install won't work properly. Usually this happens only when
3506 dnl using the fallback mkinstalldirs script
3507 AC_DEFUN([CF_PROG_INSTALL],
3513 CF_DIRNAME(cf_dir,$INSTALL)
3514 test -z "$cf_dir" && cf_dir=.
3515 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3519 dnl ---------------------------------------------------------------------------
3520 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
3522 AC_DEFUN([CF_PROG_LINT],
3524 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3526 (xcppcheck|x*/cppcheck)
3527 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3533 dnl ---------------------------------------------------------------------------
3534 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3535 dnl ----------------
3536 dnl Remove a given option from CFLAGS/CPPFLAGS
3537 dnl $1 = option to remove
3538 dnl $2 = variable to update
3539 dnl $3 = nonempty to allow verbose message
3540 define([CF_REMOVE_CFLAGS],
3542 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3545 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3546 test "[$]$2" != "$cf_old_cflag" || break
3547 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3551 dnl ---------------------------------------------------------------------------
3552 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3553 dnl ----------------
3554 dnl Remove all -U and -D options that refer to the given symbol from a list
3555 dnl of C compiler options. This works around the problem that not all
3556 dnl compilers process -U and -D options from left-to-right, so a -U option
3557 dnl cannot be used to cancel the effect of a preceding -D option.
3559 dnl $1 = target (which could be the same as the source variable)
3560 dnl $2 = source (including '$')
3561 dnl $3 = symbol to remove
3562 define([CF_REMOVE_DEFINE],
3565 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3566 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3568 dnl ---------------------------------------------------------------------------
3569 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3570 dnl ---------------------
3571 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3572 dnl $1 = name of current macro
3573 define([CF_RESTORE_XTRA_FLAGS],
3575 LIBS="$cf_save_LIBS_$1"
3576 CFLAGS="$cf_save_CFLAGS_$1"
3577 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3579 dnl ---------------------------------------------------------------------------
3580 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3582 AC_DEFUN([CF_RPATH_HACK],
3583 [AC_REQUIRE([AC_PROG_FGREP])dnl
3584 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3586 AC_MSG_CHECKING(for updated LDFLAGS)
3587 if test -n "$LD_RPATH_OPT" ; then
3588 AC_MSG_RESULT(maybe)
3590 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3591 cf_rpath_list="/usr/lib /lib"
3592 if test "$cf_ldd_prog" != no
3596 AC_TRY_LINK([#include <stdio.h>],
3598 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3599 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3601 # If we passed the link-test, but get a "not found" on a given library,
3602 # this could be due to inept reconfiguration of gcc to make it only
3603 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3604 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3605 # /usr/local libraries.
3606 if test -n "$cf_rpath_oops"
3608 for cf_rpath_src in $cf_rpath_oops
3610 for cf_rpath_dir in \
3615 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3617 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3618 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3626 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3628 CF_RPATH_HACK_2(LDFLAGS)
3629 CF_RPATH_HACK_2(LIBS)
3631 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3635 AC_SUBST(EXTRA_LDFLAGS)
3637 dnl ---------------------------------------------------------------------------
3638 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3640 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3641 dnl EXTRA_LDFLAGS for each -L option found.
3643 dnl $cf_rpath_list contains a list of directories to ignore.
3645 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3646 dnl but LIBS often has misplaced -L options.
3647 AC_DEFUN([CF_RPATH_HACK_2],
3649 CF_VERBOSE(...checking $1 [$]$1)
3652 for cf_rpath_src in [$]$1
3654 case "$cf_rpath_src" in
3657 # check if this refers to a directory which we will ignore
3659 if test -n "$cf_rpath_list"
3661 for cf_rpath_item in $cf_rpath_list
3663 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3671 if test "$cf_rpath_skip" = no
3673 # transform the option
3674 if test "$LD_RPATH_OPT" = "-R " ; then
3675 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3677 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3680 # if we have not already added this, add it now
3681 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3682 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3684 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3685 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3690 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3694 CF_VERBOSE(...checked $1 [$]$1)
3695 AC_SUBST(EXTRA_LDFLAGS)
3697 dnl ---------------------------------------------------------------------------
3698 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3699 dnl ------------------
3700 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3701 dnl and libraries which do not update those variables.
3703 dnl $1 = name of current macro
3704 define([CF_SAVE_XTRA_FLAGS],
3706 cf_save_LIBS_$1="$LIBS"
3707 cf_save_CFLAGS_$1="$CFLAGS"
3708 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3709 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3710 for cf_X_CFLAGS in $X_CFLAGS
3712 case "x$cf_X_CFLAGS" in
3714 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3717 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3722 dnl ---------------------------------------------------------------------------
3723 dnl CF_SIGWINCH version: 7 updated: 2023/02/18 17:41:25
3725 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3726 dnl programs need this test).
3728 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3729 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3730 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3731 dnl break that part of the interface as well.
3732 AC_DEFUN([CF_SIGWINCH],
3734 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3736 #include <sys/types.h>
3737 #include <sys/signal.h>
3738 ],[int x = SIGWINCH; (void)x],
3739 [cf_cv_define_sigwinch=yes],
3741 #undef _XOPEN_SOURCE
3742 #undef _POSIX_SOURCE
3743 #undef _POSIX_C_SOURCE
3744 #include <sys/types.h>
3745 #include <sys/signal.h>
3746 ],[int x = SIGWINCH; (void)x],
3747 [cf_cv_define_sigwinch=maybe],
3748 [cf_cv_define_sigwinch=no])
3752 if test "$cf_cv_define_sigwinch" = maybe ; then
3753 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3754 cf_cv_fixup_sigwinch=unknown
3756 while test "$cf_sigwinch" != 1
3759 #undef _XOPEN_SOURCE
3760 #undef _POSIX_SOURCE
3761 #undef _POSIX_C_SOURCE
3762 #include <sys/types.h>
3763 #include <sys/signal.h>
3765 #if SIGWINCH != $cf_sigwinch
3766 #error SIGWINCH is not $cf_sigwinch
3768 int x = SIGWINCH; (void)x],
3769 [cf_cv_fixup_sigwinch=$cf_sigwinch
3772 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3776 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3777 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3781 dnl ---------------------------------------------------------------------------
3782 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3784 dnl signal handler, but there are some gcc dependencies in that recommendation.
3786 AC_DEFUN([CF_SIG_ATOMIC_T],
3788 AC_MSG_CHECKING(for signal global datatype)
3789 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3791 "volatile sig_atomic_t" \
3796 #include <sys/types.h>
3802 static void handler(int sig)
3807 [signal(SIGINT, handler);
3809 [cf_cv_sig_atomic_t=$cf_type],
3810 [cf_cv_sig_atomic_t=no])
3811 test "$cf_cv_sig_atomic_t" != no && break
3814 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3815 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3817 dnl ---------------------------------------------------------------------------
3818 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3820 dnl Construct a search-list for a nonstandard header/lib-file
3821 dnl $1 = the variable to return as result
3822 dnl $2 = the package name
3823 dnl $3 = the subdirectory, e.g., bin, include or lib
3824 AC_DEFUN([CF_SUBDIR_PATH],
3828 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3830 for cf_subdir_prefix in \
3838 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3841 dnl ---------------------------------------------------------------------------
3842 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3843 dnl ------------------
3844 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3845 dnl older SCO configurations.
3846 AC_DEFUN([CF_SYS_TIME_SELECT],
3848 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3849 AC_CACHE_VAL(cf_cv_sys_time_select,[
3851 #include <sys/types.h>
3852 #ifdef HAVE_SYS_TIME_H
3853 #include <sys/time.h>
3855 #ifdef HAVE_SYS_SELECT_H
3856 #include <sys/select.h>
3858 ],[],[cf_cv_sys_time_select=yes],
3859 [cf_cv_sys_time_select=no])
3861 AC_MSG_RESULT($cf_cv_sys_time_select)
3862 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3864 dnl ---------------------------------------------------------------------------
3865 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3867 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3868 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3869 dnl but some packagers change this, breaking various applications.
3870 AC_DEFUN([CF_TERM_HEADER],[
3871 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3872 case "${cf_cv_ncurses_header}" in
3873 (*/ncurses.h|*/ncursesw.h)
3874 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3877 cf_term_header=term.h
3881 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3883 AC_TRY_COMPILE([#include <stdio.h>
3884 #include <${cf_cv_ncurses_header:-curses.h}>
3886 ],[int x = auto_left_margin; (void)x],[
3887 cf_cv_term_header="$cf_test"],[
3888 cf_cv_term_header=unknown
3890 test "$cf_cv_term_header" != unknown && break
3894 # Set definitions to allow ifdef'ing to accommodate subdirectories
3896 case "$cf_cv_term_header" in
3898 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3902 case "$cf_cv_term_header" in
3904 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3907 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3911 dnl ---------------------------------------------------------------------------
3912 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3914 dnl Define a top_builddir symbol, for applications that need an absolute path.
3915 AC_DEFUN([CF_TOP_BUILDDIR],
3917 top_builddir=ifelse($1,,`pwd`,$1)
3918 AC_SUBST(top_builddir)
3920 dnl ---------------------------------------------------------------------------
3921 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3923 dnl Check for type of function-pointer passed to tputs. Some old
3924 dnl implementations used functions that had different prototypes, making it
3925 dnl hard to compile portable programs using tputs.
3926 AC_DEFUN([CF_TPUTS_PROTO],[
3927 CF_CURSES_FUNCS(tputs)
3928 if test "x$cf_cv_func_tputs" = xyes
3931 for cf_arg in int char
3933 for cf_ret in int void
3935 if test "$cf_ret" = void
3937 cf_return="/* nothing */"
3939 cf_return="return value"
3942 #include <${cf_cv_ncurses_header:-curses.h}>
3943 #include <$cf_cv_term_header>
3945 static $cf_ret outc($cf_arg value) { $cf_return; }
3947 tputs("hello", 0, outc);
3948 ${cf_cv_main_return:-return}(0);
3950 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3951 cat >>confdefs.h <<EOF
3952 #define TPUTS_ARG $cf_arg
3953 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3954 #define TPUTS_RETURN(value) $cf_return
3960 test "$cf_done" = yes && break
3964 dnl ---------------------------------------------------------------------------
3965 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3967 dnl Trim extra base X libraries added as a workaround for inconsistent library
3968 dnl dependencies returned by "new" pkg-config files.
3969 AC_DEFUN([CF_TRIM_X_LIBS],[
3970 for cf_trim_lib in Xmu Xt X11
3973 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3974 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3975 CF_VERBOSE(..trimmed $LIBS)
3980 dnl ---------------------------------------------------------------------------
3981 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3982 dnl -----------------
3983 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3984 dnl available in that form.
3986 dnl $1 = package name, which may be a shell variable
3987 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3988 dnl $3 = logic to use if pkg-config does not have the package
3989 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3990 AC_REQUIRE([CF_PKG_CONFIG])
3992 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3993 CF_VERBOSE(found package $1)
3994 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3995 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3996 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3997 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3998 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3999 CF_ADD_LIBS($cf_pkgconfig_libs)
4000 ifelse([$2],,:,[$2])
4004 ifelse([$3],,:,[$3])
4007 dnl ---------------------------------------------------------------------------
4008 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
4009 dnl -------------------
4010 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4011 dnl can define it successfully.
4012 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4013 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4014 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4015 [cf_cv_xopen_source=no],
4016 [cf_save="$CPPFLAGS"
4017 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4018 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4019 [cf_cv_xopen_source=no],
4020 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4025 if test "$cf_cv_xopen_source" != no ; then
4026 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4027 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4028 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4029 CF_APPEND_CFLAGS($cf_temp_xopen_source)
4032 dnl ---------------------------------------------------------------------------
4033 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4035 dnl Make an uppercase version of a variable
4036 dnl $1=uppercase($2)
4037 AC_DEFUN([CF_UPPER],
4039 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4041 dnl ---------------------------------------------------------------------------
4042 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
4044 dnl Check for multibyte support, and if not found, utf8 compatibility library
4045 AC_DEFUN([CF_UTF8_LIB],
4047 AC_HAVE_HEADERS(wchar.h)
4048 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4049 cf_save_LIBS="$LIBS"
4051 $ac_includes_default
4056 [cf_cv_utf8_lib=yes],
4058 #include <libutf8.h>],[putwc(0,0);],utf8,
4059 [cf_cv_utf8_lib=add-on],
4060 [cf_cv_utf8_lib=no])
4063 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4065 if test "$cf_cv_utf8_lib" = "add-on" ; then
4066 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4067 CF_ADD_INCDIR($cf_cv_header_path_utf8)
4068 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4069 CF_ADD_LIBS($cf_cv_library_file_utf8)
4072 dnl ---------------------------------------------------------------------------
4073 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4075 dnl Use AC_VERBOSE w/o the warnings
4076 AC_DEFUN([CF_VERBOSE],
4077 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
4080 dnl ---------------------------------------------------------------------------
4081 dnl CF_WCHAR_TYPE version: 5 updated: 2023/12/03 09:21:34
4083 dnl Check if type wide-character type $1 is declared, and if so, which header
4084 dnl file is needed. The second parameter is used to set a shell variable when
4085 dnl the type is not found. The first parameter sets a shell variable for the
4087 AC_DEFUN([CF_WCHAR_TYPE],
4089 # This is needed on Tru64 5.0 to declare $1
4090 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
4095 #ifdef HAVE_LIBUTF8_H
4096 #include <libutf8.h>
4098 [$1 state; (void)state],
4105 #ifdef HAVE_LIBUTF8_H
4106 #include <libutf8.h>
4108 [$1 value; (void) value],
4110 [cf_cv_$1=unknown])])])
4112 if test "$cf_cv_$1" = yes ; then
4113 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4118 # if we do not find $1 in either place, use substitution to provide a fallback.
4119 if test "$cf_cv_$1" = unknown ; then
4124 # if we find $1 in either place, use substitution to provide a fallback.
4125 if test "$cf_cv_$1" != unknown ; then
4130 dnl ---------------------------------------------------------------------------
4131 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4132 dnl ------------------
4133 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4135 AC_DEFUN([CF_WITH_CURSES_DIR],[
4137 AC_MSG_CHECKING(for specific curses-directory)
4138 AC_ARG_WITH(curses-dir,
4139 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4140 [cf_cv_curses_dir=$withval],
4141 [cf_cv_curses_dir=no])
4142 AC_MSG_RESULT($cf_cv_curses_dir)
4144 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4146 CF_PATH_SYNTAX(withval)
4147 if test -d "$cf_cv_curses_dir"
4149 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4150 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4154 dnl ---------------------------------------------------------------------------
4155 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4156 dnl ----------------
4157 dnl Configure-option for dbmalloc. The optional parameter is used to override
4158 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4159 AC_DEFUN([CF_WITH_DBMALLOC],[
4160 CF_NO_LEAKS_OPTION(dbmalloc,
4161 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4164 if test "$with_dbmalloc" = yes ; then
4165 AC_CHECK_HEADER(dbmalloc.h,
4166 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4169 dnl ---------------------------------------------------------------------------
4170 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4172 dnl Configure-option for dmalloc. The optional parameter is used to override
4173 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4174 AC_DEFUN([CF_WITH_DMALLOC],[
4175 CF_NO_LEAKS_OPTION(dmalloc,
4176 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4179 if test "$with_dmalloc" = yes ; then
4180 AC_CHECK_HEADER(dmalloc.h,
4181 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4184 dnl ---------------------------------------------------------------------------
4185 dnl CF_WITH_LIB_BASENAME version: 2 updated: 2023/11/22 20:48:30
4186 dnl --------------------
4187 dnl Allow for overriding the basename of a library, i.e., the part to which
4188 dnl prefixes/suffixes are attached.
4190 dnl $1 = variable to set
4191 dnl $2 = option name
4192 dnl $3 = default basename for library, if omitted use $2
4193 AC_DEFUN([CF_WITH_LIB_BASENAME],
4195 AC_MSG_CHECKING(for desired basename for $2 library)
4196 AC_ARG_WITH($2-libname,
4197 [[ --with-$2-libname[=XXX] override ifelse($3,,$2,$3) basename of library]],
4198 [with_lib_basename=$withval],
4199 [with_lib_basename=ifelse($3,,$2,$3)])
4200 $1="$with_lib_basename"
4204 $1=ifelse($3,,$2,$3)
4210 AC_MSG_RESULT([$]$1)
4213 dnl ---------------------------------------------------------------------------
4214 dnl CF_WITH_NCURSES_ETC version: 6 updated: 2023/01/16 10:10:06
4215 dnl -------------------
4216 dnl Use this macro for programs which use any variant of "curses", e.g.,
4217 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4218 dnl library (such as slang) should use a "--with-screen=XXX" option.
4220 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4221 dnl of the macros inside this one - before this macro.
4222 define([CF_WITH_NCURSES_ETC],[
4227 AC_MSG_CHECKING(for specified curses library type)
4229 [ --with-screen=XXX use specified curses-libraries],
4230 [cf_cv_screen=$withval],[
4232 AC_ARG_WITH(ncursesw,
4233 [ --with-ncursesw use wide ncurses-libraries],
4234 [cf_cv_screen=ncursesw],[
4236 AC_ARG_WITH(ncurses,
4237 [ --with-ncurses use ncurses-libraries],
4238 [cf_cv_screen=ncurses],[
4240 AC_ARG_WITH(pdcurses,
4241 [ --with-pdcurses compile/link with pdcurses X11 library],
4242 [cf_cv_screen=pdcurses],[
4244 AC_ARG_WITH(curses-colr,
4245 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4246 [cf_cv_screen=curses_colr],[
4248 AC_ARG_WITH(curses-5lib,
4249 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4250 [cf_cv_screen=curses_5lib])])])])])])
4252 AC_MSG_RESULT($cf_cv_screen)
4254 case $cf_cv_screen in
4260 CF_NCURSES_CONFIG($cf_cv_screen)
4263 CF_NCURSES_CONFIG($cf_cv_screen)
4269 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4273 CF_NCURSES_PTHREADS($cf_cv_screen)
4274 AC_SUBST(cf_cv_screen)
4277 dnl ---------------------------------------------------------------------------
4278 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4279 dnl -----------------------
4280 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4281 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4282 dnl script to search for the X11/Xt header files to declare (or not) the
4283 dnl symbol needed to enable "const" in those header files. If that configure
4284 dnl option is not used, then those checks are unnecessary.
4285 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4286 AC_PROVIDE([AC_PATH_XTRA])
4287 AC_PROVIDE([AC_PATH_X])
4288 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4294 dnl ---------------------------------------------------------------------------
4295 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4296 dnl ----------------
4297 AC_DEFUN([CF_WITH_VALGRIND],[
4298 CF_NO_LEAKS_OPTION(valgrind,
4299 [ --with-valgrind test: use valgrind],
4302 dnl ---------------------------------------------------------------------------
4303 dnl CF_WITH_X11_RGB version: 3 updated: 2023/10/28 11:59:01
4305 dnl Handle configure option "--with-x11-rgb", setting these shell
4308 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4309 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4311 dnl Most Linux's use this:
4312 dnl /usr/share/X11/rgb.txt
4313 dnl Debian uses this:
4314 dnl /etc/X11/rgb.txt
4315 dnl DragonFlyBSD ports uses this:
4316 dnl /usr/pkg/lib/X11/rgb.txt
4317 dnl FreeBSD ports use these:
4318 dnl /usr/local/lib/X11/rgb.txt
4319 dnl /usr/local/share/X11/rgb.txt
4320 dnl Mandriva has these:
4321 dnl /usr/lib/X11/rgb.txt
4322 dnl /usr/lib64/X11/rgb.txt
4323 dnl NetBSD has these
4324 dnl /usr/X11R7/lib/X11/rgb.txt
4325 dnl OpenSolaris uses
4327 dnl /usr/X11/etc/X11/rgb.txt
4328 dnl /usr/X11/share/X11/rgb.txt
4329 dnl /usr/X11/lib/X11/rgb.txt
4331 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4332 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4334 dnl /usr/X11/etc/X11/rgb.txt
4335 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4336 dnl /usr/X11/lib/amd64/X11/rgb.txt
4337 dnl Solaris10 uses (in this order):
4338 dnl /usr/openwin/lib/X11/rgb.txt
4339 dnl /usr/X11/lib/X11/rgb.txt
4340 AC_DEFUN([CF_WITH_X11_RGB],[
4341 AC_MSG_CHECKING(for X11 rgb file)
4342 AC_ARG_WITH(x11-rgb,
4343 [ --with-x11-rgb=FILE obtain X11 color definitions from FILE (default: EPREFIX/lib/X11/rgb.txt)],
4344 [RGB_PATH=$withval],
4347 if test "x[$]RGB_PATH" = xauto
4349 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4351 /opt/local/share/X11/rgb.txt \
4352 /opt/X11/share/X11/rgb.txt \
4353 /usr/share/X11/rgb.txt \
4354 /usr/X11/share/X11/rgb.txt \
4355 /usr/X11/lib/X11/rgb.txt \
4356 /usr/lib/X11/rgb.txt \
4358 /usr/pkg/lib/X11/rgb.txt \
4359 /usr/X11R7/lib/X11/rgb.txt \
4360 /usr/X11R6/lib/X11/rgb.txt \
4361 /usr/X11R5/lib/X11/rgb.txt \
4362 /usr/X11R4/lib/X11/rgb.txt \
4363 /usr/local/lib/X11/rgb.txt \
4364 /usr/local/share/X11/rgb.txt \
4365 /usr/lib64/X11/rgb.txt
4367 if test -f "$cf_path" ; then
4374 CF_PATH_SYNTAX(cf_path)
4377 AC_MSG_RESULT($RGB_PATH)
4379 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4382 if test "$RGB_PATH" = no
4386 AC_SUBST(no_x11_rgb)
4388 dnl ---------------------------------------------------------------------------
4389 dnl CF_XOPEN_CURSES version: 18 updated: 2023/01/11 04:05:23
4391 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4392 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4394 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4395 dnl as getbegy(). The latter is better design, but the former is standard.
4396 AC_DEFUN([CF_XOPEN_CURSES],
4398 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4399 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4400 cf_cv_need_xopen_extension=unknown
4402 $ac_includes_default
4403 #include <${cf_cv_ncurses_header:-curses.h}>],[
4404 #if defined(NCURSES_VERSION_PATCH)
4405 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4409 #ifdef NCURSES_WIDECHAR
4410 make an error /* prefer to fall-through on the second checks */
4413 int check2 = curs_set((int)sizeof(check));
4414 long x = winnstr(stdscr, "", 0);
4417 getbegyx(stdscr, y1, x1);
4422 [cf_cv_need_xopen_extension=none],
4424 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4427 #define $cf_try_xopen_extension 1
4428 $ac_includes_default
4429 #include <${cf_cv_ncurses_header:-curses.h}>],[
4431 int check2 = curs_set((int)sizeof(check));
4432 long x = winnstr(stdscr, "", 0);
4434 getbegyx(stdscr, y1, x1);
4440 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4445 case "$cf_cv_need_xopen_extension" in
4447 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4452 dnl ---------------------------------------------------------------------------
4453 dnl CF_XOPEN_SOURCE version: 67 updated: 2023/09/06 18:55:27
4455 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4456 dnl or adapt to the vendor's definitions to get equivalent functionality,
4457 dnl without losing the common non-POSIX features.
4460 dnl $1 is the nominal value for _XOPEN_SOURCE
4461 dnl $2 is the nominal value for _POSIX_C_SOURCE
4463 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
4464 dnl implementation predefines it, because X/Open and most implementations agree
4465 dnl that the latter is a legacy or "aligned" value.
4467 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
4468 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
4471 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
4472 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
4473 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
4474 AC_DEFUN([CF_XOPEN_SOURCE],[
4475 AC_REQUIRE([AC_CANONICAL_HOST])
4476 AC_REQUIRE([CF_POSIX_VISIBLE])
4478 if test "$cf_cv_posix_visible" = no; then
4480 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4481 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4486 cf_xopen_source="-D_ALL_SOURCE"
4489 cf_xopen_source="-D_APPLE_C_SOURCE"
4492 cf_xopen_source="-D_DARWIN_C_SOURCE"
4495 (freebsd*|dragonfly*|midnightbsd*)
4496 # 5.x headers associate
4497 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4498 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4499 cf_POSIX_C_SOURCE=200112L
4501 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4504 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4507 cf_xopen_source="-D_HPUX_SOURCE"
4510 cf_xopen_source="-D_SGI_SOURCE"
4513 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc)
4514 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4517 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4520 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4522 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4525 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4528 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4529 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4530 # Abusing the conformance level is a workaround.
4531 AC_MSG_WARN(this system does not provide usable locale support)
4532 cf_xopen_source="-D_BSD_SOURCE"
4536 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4537 cf_xopen_source="-D_BSD_SOURCE"
4541 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4544 cf_xopen_source="-D_OSF_SOURCE"
4547 cf_xopen_source="-D_QNX_SOURCE"
4550 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4553 cf_xopen_source="-D__EXTENSIONS__"
4554 cf_cv_xopen_source=broken
4556 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4562 cf_save_xopen_cppflags="$CPPFLAGS"
4563 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4564 # Some of these niche implementations use copy/paste, double-check...
4565 if test "$cf_cv_xopen_source" = no ; then
4566 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
4567 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
4568 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
4569 CPPFLAGS="$cf_save_xopen_cppflags"])
4574 if test -n "$cf_xopen_source" ; then
4575 CF_APPEND_CFLAGS($cf_xopen_source,true)
4578 dnl In anything but the default case, we may have system-specific setting
4579 dnl which is still not guaranteed to provide all of the entrypoints that
4580 dnl _XOPEN_SOURCE would yield.
4581 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4582 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4583 AC_TRY_COMPILE([#include <stdlib.h>],[
4584 #ifndef _XOPEN_SOURCE
4585 #error _XOPEN_SOURCE is not defined
4587 [cf_XOPEN_SOURCE_set=yes],
4588 [cf_XOPEN_SOURCE_set=no])
4589 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4590 if test "$cf_XOPEN_SOURCE_set" = yes
4592 AC_TRY_COMPILE([#include <stdlib.h>],[
4593 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4594 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4596 [cf_XOPEN_SOURCE_set_ok=yes],
4597 [cf_XOPEN_SOURCE_set_ok=no])
4598 if test "$cf_XOPEN_SOURCE_set_ok" = no
4600 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4606 fi # cf_cv_posix_visible
4608 dnl ---------------------------------------------------------------------------
4609 dnl CF_X_ATHENA version: 25 updated: 2023/01/11 04:05:23
4611 dnl Check for Xaw (Athena) libraries
4613 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4614 AC_DEFUN([CF_X_ATHENA],
4616 cf_x_athena=${cf_x_athena:-Xaw}
4618 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4621 [ --with-Xaw3d link with Xaw 3d library])
4622 if test "$withval" = yes ; then
4629 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4631 AC_ARG_WITH(Xaw3dxft,
4632 [ --with-Xaw3dxft link with Xaw 3d xft library])
4633 if test "$withval" = yes ; then
4634 cf_x_athena=Xaw3dxft
4640 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4643 [ --with-neXtaw link with neXT Athena library])
4644 if test "$withval" = yes ; then
4651 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4653 AC_ARG_WITH(XawPlus,
4654 [ --with-XawPlus link with Athena-Plus library])
4655 if test "$withval" = yes ; then
4664 if test "$PKG_CONFIG" != none ; then
4666 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4667 for cf_athena_pkg in \
4670 ${cf_x_athena}-devel \
4672 lib${cf_x_athena}-devel
4674 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4675 cf_x_athena_lib="$cf_pkgconfig_libs"
4676 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4677 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4681 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4683 $ac_includes_default
4684 #include <X11/Xmu/CharSet.h>
4686 int check = XmuCompareISOLatin1("big", "small");
4688 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4690 if test "$cf_cv_xaw_compat" = no
4692 # workaround for broken ".pc" files...
4693 case "$cf_x_athena_lib" in
4697 CF_VERBOSE(work around broken package)
4699 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4700 CF_TRY_PKG_CONFIG(xmu,[
4702 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4704 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4715 if test -z "$cf_x_athena_lib" ; then
4718 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4719 CF_X_ATHENA_LIBS($cf_x_athena)
4722 dnl ---------------------------------------------------------------------------
4723 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4724 dnl --------------------
4725 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4726 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4727 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4729 AC_REQUIRE([AC_PATH_XTRA])
4730 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4733 for cf_path in default \
4734 /usr/contrib/X11R6 \
4735 /usr/contrib/X11R5 \
4739 if test -z "$cf_x_athena_inc" ; then
4740 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4741 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4742 if test "$cf_path" != default ; then
4743 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4744 AC_MSG_CHECKING(for $cf_test in $cf_path)
4746 AC_MSG_CHECKING(for $cf_test)
4749 #include <X11/Intrinsic.h>
4750 #include <$cf_test>],[],
4753 AC_MSG_RESULT($cf_result)
4754 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4755 if test "$cf_result" = yes ; then
4756 test "$cf_path" = default && cf_x_athena_inc=default
4757 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4763 if test -z "$cf_x_athena_inc" ; then
4764 AC_MSG_WARN([Unable to find Athena header files])
4765 elif test "$cf_x_athena_inc" != default ; then
4766 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4769 dnl ---------------------------------------------------------------------------
4770 dnl CF_X_ATHENA_LIBS version: 14 updated: 2023/01/11 04:05:23
4771 dnl ----------------
4772 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4773 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4774 AC_DEFUN([CF_X_ATHENA_LIBS],
4775 [AC_REQUIRE([CF_X_TOOLKIT])
4776 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4779 for cf_path in default \
4780 /usr/contrib/X11R6 \
4781 /usr/contrib/X11R5 \
4786 ${cf_x_athena_root} \
4787 ${cf_x_athena_root}7 \
4788 ${cf_x_athena_root}6
4792 "-l$cf_lib -lXpm -lXmu" \
4793 "-l${cf_lib}_s -lXmu_s"
4795 test -n "$cf_x_athena_lib" && break
4797 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4798 cf_test=XawSimpleMenuAddGlobalActions
4799 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4800 CF_ADD_LIBS($cf_libs)
4801 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4803 $ac_includes_default
4804 #include <X11/Intrinsic.h>
4805 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4807 $cf_test((XtAppContext) 0)],
4810 AC_MSG_RESULT($cf_result)
4811 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4813 if test "$cf_result" = yes ; then
4814 cf_x_athena_lib="$cf_libs"
4818 test -n "$cf_x_athena_lib" && break
4822 if test -z "$cf_x_athena_lib" ; then
4824 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4827 CF_ADD_LIBS($cf_x_athena_lib)
4828 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4829 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4831 dnl ---------------------------------------------------------------------------
4832 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4834 AC_DEFUN([CF_X_EXT],[
4835 CF_TRY_PKG_CONFIG(Xext,,[
4836 AC_CHECK_LIB(Xext,XextCreateExtension,
4837 [CF_ADD_LIB(Xext)])])
4839 dnl ---------------------------------------------------------------------------
4840 dnl CF_X_TOOLKIT version: 27 updated: 2023/01/11 04:05:23
4842 dnl Check for X Toolkit libraries
4843 AC_DEFUN([CF_X_TOOLKIT],
4845 AC_REQUIRE([AC_PATH_XTRA])
4846 AC_REQUIRE([CF_CHECK_CACHE])
4848 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4849 # in some cases has installed dummy files in the former, other cases replaced
4850 # it with a link to the new location). This complicates the configure script.
4851 # Check for that pitfall, and recover using pkg-config
4853 # If none of these are set, the configuration is almost certainly broken.
4854 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4856 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4857 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4858 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4859 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4861 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4866 CF_TRY_PKG_CONFIG(xt,[
4872 # we have an "xt" package, but it may omit Xt's dependency on X11
4873 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4875 $ac_includes_default
4876 #include <X11/Xlib.h>
4878 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4879 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4880 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4881 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4882 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4883 if test "$cf_cv_xt_x11_compat" = no
4885 CF_VERBOSE(work around broken X11 dependency)
4886 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4887 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4892 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4894 $ac_includes_default
4895 #include <X11/Shell.h>
4896 ],[int num = IceConnectionNumber(0); (void) num
4897 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4899 if test "$cf_cv_xt_ice_compat" = no
4901 # workaround for broken ".pc" files used for X Toolkit.
4902 case "x$X_PRE_LIBS" in
4908 CF_VERBOSE(work around broken ICE dependency)
4909 CF_TRY_PKG_CONFIG(ice,
4910 [CF_TRY_PKG_CONFIG(sm)],
4911 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4921 LDFLAGS="$X_LIBS $LDFLAGS"
4922 CF_CHECK_CFLAGS($X_CFLAGS)
4924 AC_CHECK_FUNC(XOpenDisplay,,[
4925 AC_CHECK_LIB(X11,XOpenDisplay,
4926 [CF_ADD_LIB(X11)])])
4928 AC_CHECK_FUNC(XtAppInitialize,,[
4929 AC_CHECK_LIB(Xt, XtAppInitialize,
4930 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4932 LIBS="-lXt $LIBS"])])
4935 if test "$cf_have_X_LIBS" = no ; then
4937 [Unable to successfully link X Toolkit library (-lXt) with
4938 test program. You will have to check and add the proper libraries by hand
4942 dnl ---------------------------------------------------------------------------
4943 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4945 dnl Attempt to make a copy of a curses data item. This is needed in the
4946 dnl check-data configure tests when using ncurses, because the symbol may be
4947 dnl actually a function return-value. That could happen if the linker is
4948 dnl broken (does not resolve data-only references), or if ncurses is configured
4949 dnl to support re-entrant code.
4952 define([CF__CURSES_DATA],[
4953 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4954 const void *$1 = (const void *)($2);
4956 const void *$1 = &($2);
4958 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4960 dnl ---------------------------------------------------------------------------
4961 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4963 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4964 dnl are both available.
4965 define([CF__CURSES_HEAD],[
4967 #include <xcurses.h>
4968 char * XCursesProgramName = "test";
4970 #include <${cf_cv_ncurses_header:-curses.h}>
4971 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4972 #include <ncursesw/term.h>
4973 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4974 #include <ncurses/term.h>
4975 #elif defined(HAVE_TERM_H)
4980 dnl ---------------------------------------------------------------------------
4981 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
4982 dnl ---------------------
4983 dnl body of test when test-compiling for _XOPEN_SOURCE check
4984 define([CF__XOPEN_SOURCE_BODY],
4986 #ifndef _XOPEN_SOURCE
4987 #error _XOPEN_SOURCE is not defined
4990 dnl ---------------------------------------------------------------------------
4991 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
4992 dnl ---------------------
4993 dnl headers to include when test-compiling for _XOPEN_SOURCE check
4994 define([CF__XOPEN_SOURCE_HEAD],
4996 $ac_includes_default